source
string
task_type
string
in_source_id
string
instruction_seed
string
gold_standard_solution
string
verification_info
string
metadata
string
problem_id
string
_source
string
stackexchange
llm_judgeable_groundtruth_similarity
12377165
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: my query is sql = "SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) FROM MV_MFT_TRANSFER WHERE TRANSFER_INITIATION_TIME > :startDate ...
The following solution should work: sql = "SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) FROM MV_MFT_TRANSFER WHERE TRANSFER_INITIATION_TIME > ? AND TRANSFER_INITIATION_TIME < ?"Query query = em.createNativeQuery(sql);query.setParameter(1, startDate, TemporalType.DATE);...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/12377165', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1663948/']}
jdg_80366
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
40340962
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: When transitioning from state parents.view to parents.view.childs - I do not see the controller associated with parents.view.childs being called/loaded. But prints within get...
When using ES6 classes in RN, watch for binding this - this may not be what you think unless you bind it. onPress = { this._onPressGet.bind(this) } or in the constructor constructor(props) { super(props); this.state = { initialPosition: 'unknown', lastPosition: 'unknown' }; this._onPressGet = this._onPressGet...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/40340962', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/5230894/']}
jdg_355939
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5874552
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I use GVim on Windows 7. I want to learn how to put newline characters by using regex substitutions. To do this I try to use \r and \n metacharacters but the substituted text...
^@ is a nul For some reason, vim wants to see \r in the replacement text in order to insert a newline. ( \n in the replacement inserts a nul.) So, after succesfully locating newlines by running /\n , try: s//\r/ Or to add an extra newline: s/$/\r/ On the pattern side, \r means an actual (015) CR character, leading to t...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/5874552', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/29246/']}
jdg_298326
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
60825
Below is a question asked on the forum stats.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: In a Wilcoxon signed-ranks statistical significance test, we came across some data that produces a $p$-value of $0.04993$. With a threshold of $p < 0.05$, is this resul...
There are two issues here: 1) If you're doing a formal hypothesis test (and if you're going as far as quoting a p-value in my book you already are), what is the formal rejection rule? When comparing test statistics to critical values, the critical value is in the rejection region . While this formality doesn't matter m...
{}
{'log_upvote_score': 5, 'links': ['https://stats.stackexchange.com/questions/60825', 'https://stats.stackexchange.com', 'https://stats.stackexchange.com/users/24494/']}
jdg_368747
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6348215
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: given this JSON: [ { "$id": "1", "$type": "MyAssembly.ClassA, MyAssembly", "Email": "me@here.com", }, { "$id": "2", "$type": "MyAssembly.ClassB, MyAssembly"...
You need: JsonSerializerSettings settings = new JsonSerializerSettings{ TypeNameHandling = TypeNameHandling.All};string strJson = JsonConvert.SerializeObject(instance, settings); So the JSON looks like this: { "$type": "System.Collections.Generic.List`1[[MyAssembly.BaseClass, MyAssembly]], mscorlib", "$values": [ ...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/6348215', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/28543/']}
jdg_273641
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6246826
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: If I do this post = Post.find_by_id(post_id, :include => :comments) two queries are performed (one for post data and and another for the post's comments). Then when I do post...
No, there is not. This is the intended behavior of :include , since the JOIN approach ultimately comes out to be inefficient. For example, consider the following scenario: the Post model has 3 fields that you need to select, 2 fields for Comment , and this particular post has 100 comments. Rails could run a single JOIN...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/6246826', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/83897/']}
jdg_160805
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5033232
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: It is my understanding that when you make a copy of a class that defines a pointer variable, the pointer is copied, but the data that the pointer is pointing to is not. My qu...
The pointer will be simply copied as a value - so both classes will point to the same original memory, no new allocation takes place. Shallow copy - this is what the language does by default. If you need to allocate new memory and make a copy of the data you have to do that yourself in the copy constructor. Deep copy -...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/5033232', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/621929/']}
jdg_312559
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2900324
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I'm not quite sure stackoverflow is a place for such a general question, but let's give it a try. Being exposed to the need of storing application data somewhere, I've always...
If all you need to do is store some application data somewhere, then a general purpose RDBMS or even SQLite might be overkill. Serializing your objects and writing them to a file might be simpler in some cases. An advantage to SQLite is that if you have a lot of this kind of information, it is all contained in one file...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/2900324', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/211223/']}
jdg_362189
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
19145332
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: This is a Python and NLTK newbie question. I want to find frequency of bigrams which occur more than 10 times together and have the highest PMI. For this, I am working with t...
The problem is with the way you are trying to use apply_freq_filter . We are discussing about word collocations. As you know, a word collocation is about dependency between words. The BigramCollocationFinder class inherits from a class named AbstractCollocationFinder and the function apply_freq_filter belongs to this c...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/19145332', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/345623/']}
jdg_150550
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
841089
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have an action method that depending on some conditions needs to return a partial view via ajax, or redirect to another Controller/Action. The correct view is returned but...
I think I would refactor this to use jQuery rather than MVC Ajax. jQuery will give you a lot more control over what you can do with the result that you get back. If that's not an option, you might want to look at the OnComplete callback and see what data you get passed to it and see if there is a way get the url that...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/841089', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/-1/']}
jdg_135402
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
11322514
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: A question was asked to me today and I do not believe it is possible, but I could be wrong or am over thinking it. How can you reverse an array without using iteration in C? ...
The answer to your question is that, yes, it is possible to reverse an array without iteration . The phrasing of the question itself might be ambiguous, however, the spirit of the question is obvious: a recursive algorithm can be used; and there is no ambiguity at all as to the meaning of recursive in this sense. If, i...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/11322514', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/468904/']}
jdg_258800
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
241678
Below is a question asked on the forum serverfault.com. Provide a good and informational response to it like a helpful human would. Question: I am looking for something similiar to Bootcamp . Currently, I run Ubuntu Maveric as my primary operating system and run Windows 7 in Virtualbox. For some tasks, however, runni...
It is possible to boot your Windows installed on your computer in a VM running on a Linux installed on the same computer. The only thing to remember: do not mount a partition on both OS. I've used this setup in qemu, kvm and VirtualBox. EDIT: The ideea is to use the entire physical disk and be careful not to mount the ...
{}
{'log_upvote_score': 5, 'links': ['https://serverfault.com/questions/241678', 'https://serverfault.com', 'https://serverfault.com/users/22/']}
jdg_265015
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
3900307
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Say I have got following two case class es: case class Address(street: String, city: String, state: String, zipCode: Int)case class Person(firstName: String, lastName: String...
Zippers Huet's Zipper provides convenient traversal and 'mutation' of an immutable data structure. Scalaz provides Zippers for Stream ( scalaz.Zipper ), and Tree ( scalaz.TreeLoc ). It turns out that the structure of the zipper is automatically derivable from the original data structure, in a manner that resembles symb...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/3900307', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/192247/']}
jdg_137116
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5080477
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I would like to add some C# "debug only" code that only runs if the person debugging requests it. In C++, I used to do something similar to the following: void foo(){ //...
An instance variable would probably be the way to do what you want. You could make it static to persist the same value for the life of the program (or thread depending on your static memory model), or make it an ordinary instance var to control it over the life of an object instance. If that instance is a singleton, th...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/5080477', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/495262/']}
jdg_296183
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2556233
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: While playing with the eikonal equation (classical optics) I stumbled this differential equation :$$y y'' = k\left((y')^2 + 1\right)$$where $y=y(x)$ should be defined fo...
Rewrite it as $$\frac{2y'y''}{(y')^2+1} = \frac{2ky'}{y}$$Integrate to get $$\ln \left((y')^2+1\right) = 2k \ln y + c$$So $$(y')^2+1 = C_1y^{2k}$$Rearrange to get $$1=\frac{y'}{\sqrt{C_1y^{2k}-1}}$$Integrate to get $$x+c_2 = \int \frac{dy}{\sqrt{C_1y^{2k}-1}}$$Substitute $y=\sec^{1/k}(t)/C_1^{1/2k}$ to get $$x+c_2 = \i...
{}
{'log_upvote_score': 5, 'links': ['https://math.stackexchange.com/questions/2556233', 'https://math.stackexchange.com', 'https://math.stackexchange.com/users/464791/']}
jdg_91773
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
84280
Below is a question asked on the forum electronics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Why there are IPC footprint Levels A and B? I believe it has to do with the standard related to tape and reel feeding, but I will appreciate a more elaborated ans...
Generally speaking, there could be as many footprints as you need depending on the criteria set to be satisfied in each possible (working) case. Below is an example of a hypothetical SMD resistor's footprints prepared in relation with the target board manufacturing/fabrication process: hypothetically you desire the fir...
{}
{'log_upvote_score': 4, 'links': ['https://electronics.stackexchange.com/questions/84280', 'https://electronics.stackexchange.com', 'https://electronics.stackexchange.com/users/15955/']}
jdg_209958
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
124681
Below is a question asked on the forum unix.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: How do I setup ssh from the host to the guest using qemu? I am able to use port redirection when I boot the VM without any special parameters, as follows: /usr/bin/qemu-...
I think that the error does not come from the -net statement, but from: -chardev socket,host=localhost,port=7777,server,nowait,id=port1-char The statement uses already the port 7777 . For the port forwarding, with -net user,hostfwd=tcp::7777-:8001 It works fine when not setting up the virtio serial channel. If I unders...
{}
{'log_upvote_score': 7, 'links': ['https://unix.stackexchange.com/questions/124681', 'https://unix.stackexchange.com', 'https://unix.stackexchange.com/users/29330/']}
jdg_267073
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1920430
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: is this form of intializing an array to all 0s char myarray[ARRAY_SIZE] = {0} supported by all compilers? , if so, is there similar syntax to other types? for example bool m...
Yes, this form of initialization is supported by all C++ compilers. It is a part of C++ language. In fact, it is an idiom that came to C++ from C language. In C language = { 0 } is an idiomatic universal zero-initializer . This is also almost the case in C++. Since this initalizer is universal, for bool array you don't...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/1920430', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/207725/']}
jdg_141801
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
14785682
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I am using a substr method to access the first 20 characters of a string. It works fine in normal situation, but while working on rtl languages (utf8) it gives me wrong resul...
If you’re working with strings encoded as UTF-8 you may lose characters when you try to get a part of them using the PHP substr function. This happens because in UTF-8 characters are not restricted to one byte, they have variable length to match Unicode characters, between 1 and 4 bytes. You can use mb_substr() , I...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/14785682', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2043466/']}
jdg_302319
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
142380
Below is a question asked on the forum electronics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Based on figure. Maybe a simple question, but I'd like to know why that if forced response is zero, then $$\omega L = \frac{1}{\omega C}$$ where \$L\$ is the ind...
Everything is done in "sections". Where a section goes depends on its use. What gets put into a section, again, depends on its use. In general you get two "data" sections - .data and .rodata. .data is stored in RAM and is read-write. .rodata is stored in Flash and is read-only. Things that are "const" generally end...
{}
{'log_upvote_score': 4, 'links': ['https://electronics.stackexchange.com/questions/142380', 'https://electronics.stackexchange.com', 'https://electronics.stackexchange.com/users/57531/']}
jdg_84061
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
289011
Below is a question asked on the forum physics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: What "General dispersion relation", has to do with Dispersion relation , in general?And what is the use of it in cosmology? Now provide the response and nothing else...
Dispersion relations are the equations relating frequency to wavelength or wavenumber, or either one to the speed of any waves. For light in vacuum $\omega$ (w 2pi*frequency) and k (2pi/wavelength) are proportional with c as the proportionality factor. If that's not true, as in a prism, where different wavelengths or f...
{}
{'log_upvote_score': 4, 'links': ['https://physics.stackexchange.com/questions/289011', 'https://physics.stackexchange.com', 'https://physics.stackexchange.com/users/133041/']}
jdg_379640
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
188715
Below is a question asked on the forum unix.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I'm learning file operation calls under Linux. The read() and write() and many other functions use cache to increase performance, and I know fsync() can transfer data fr...
Read data is (directly) read from the cache only if it is already there. That implies that cached data was previously accessed by a process and kept in cache. There is no system call or any method for a process to know if some piece of data to be read is already in cache or not. On the other hand, a process can select ...
{}
{'log_upvote_score': 4, 'links': ['https://unix.stackexchange.com/questions/188715', 'https://unix.stackexchange.com', 'https://unix.stackexchange.com/users/105696/']}
jdg_111528
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1392584
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I have a sequence of complex numbers $a_1,a_2,...$ such that $a_i \neq -1$. I then have the infinite product $\prod\limits_{n=1}^{\infty}(1+a_n)$ which I know converges ...
The infinite product $\prod_n (1+a_n)$ converges (to a nonzero value) if and only if $\sum_n \log(1+a_n)$ converges (for a branch of $\log$ that is analytic in a neighbourhood of $1$, with $\log(1) = 0$). This does not in general imply $\sum_n \dfrac{a_n}{1+a_n}$ converges. For example, take a positive sequence $b_k...
{}
{'log_upvote_score': 4, 'links': ['https://math.stackexchange.com/questions/1392584', 'https://math.stackexchange.com', 'https://math.stackexchange.com/users/153124/']}
jdg_247772
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
55187563
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Is there an easy way to determine which variable in a useEffect 's dependency array triggers a function re-fire? Simply logging out each variable can be misleading, if a is a...
I ended up taking a little bit from various answers to make my own hook for this. I wanted the ability to just drop something in place of useEffect for quickly debugging what dependency was triggering useEffect . const usePrevious = (value, initialValue) => { const ref = useRef(initialValue); useEffect(() => { ref...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/55187563', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2847302/']}
jdg_348784
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
9807952
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a table with data from an SQL database and the table exists of a few rows and columns. The user has to provide credentials first before the table with the data is show...
Here is a solution. I am following all the excellent comments so far, and hopefully adding value by showing you how to handle any number of files. I am assuming you have all your csv files in the same directory ( my.csv.dir below). # locate the filesfiles <- list.files(my.csv.dir)# read the files into a list of data.fr...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/9807952', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/538047/']}
jdg_373563
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
33378904
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Is there a way to do an "instanceof"-like query on an object against a union type that's built into the language? I have a type alias with a union type as follows: type MyTyp...
There's no runtime representation of type aliases, so there's nothing "built in" per se for doing this kind of check. This pattern would be fairly maintainable, though: // Future devs: Please keep these in synctype MyType = Foo|Bar|Thing;let MyTypeClasses = [Foo,Bar,Thing];function getMyType(): MyType { var ...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/33378904', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1405720/']}
jdg_315811
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
25436
Below is a question asked on the forum mathematica.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Consider the following example: 4.*Mean@Table[ Boole[Random[]^2 + Random[]^2 < 1], {10^6}] // AbsoluteTiming(*{0.408023, 3.14105}*)With[{n = 10^6}, 4. Mean@Boole...
First, the old Random function uses an inferior PRN generator and should not be used other than for legacy compatibility, if I recall correctly. On my machine (version 7, Windows 7) the second method is faster than the first, though not by a great amount: 4.*Mean@Table[Boole[RandomReal[]^2 + RandomReal[]^2 < 1], {10^6}...
{}
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jdg_370178
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
51241528
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I want to inject some ValueType variable values using autofac, as we do same for Interfaces. I don't want to additionally mention in bootstrapper that this class have named ...
As far as I understood you basically want a different, unique lock for each of your SomeEntity IDs. You could realize this with a Map<Integer, Object> . You simply map each ID to an object. Should there already be an object, you reuse it. This could look something like this: static Map<Integer, Object> locks = new Conc...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/51241528', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1215724/']}
jdg_235292
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
248254
Below is a question asked on the forum physics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: When an object is at a certain height, it has some energy stored in it as we have done some work on it to get it to that height. So when it already has energy, then w...
It is wrong to think potential energy is stored in the object. The earth pulls the object down, but the object pulls the earth up. They share the potential energy. The object fails to fall down because the tabletop pushes it up. The earth fails to fall up because the bottom of the table legs push the earth down. The ta...
{}
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jdg_70856
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1804333
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: How many divisors does $25^2+98^2$ have? My Attempt: Calculator is not allowed but using calculator I found $193\times53$ that means $8$ divisors and that $4$ of them ar...
The trick here is the useful identity $a^4+4b^4=(a^2+2ab+2b^2)(a^2-2ab+2b^2)$. In this case we have $a=5,b=7$, so we get the factorisation $(25+70+98)(25-70+98)=193\cdot53$. It is now easy to check that 53,193 are prime, so there are as you say 4 divisors: 1, 53, 193 and the number itself. It is usual in this kind of q...
{}
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jdg_172601
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
10199219
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: It noticed a weird thing with Go templates when I try to use Funcs and FuncMap . The following code works as expected: buffer := bytes.NewBufferString("")funcMap := template....
ParseFiles could probably use better documentation. A template object can have multiple templates in it and each one has a name. If you look at the implementation of ParseFiles, you see that it uses the filename as the template name inside of the template object. So, name your file the same as the template object, (...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/10199219', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/820664/']}
jdg_241382
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
123349
Below is a question asked on the forum softwareengineering.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: The following scenario often happens with my team at the office. Let's say we decided to plan our Sprint this way: 50% new features 50% bug fixing (they a...
Velocity is X because velocity measures how much story points (= business value) you delivered in the last sprint. But you have second value available - capacity. Capacity is number of hours / man days you have available for the sprint. So if you now doubled the capacity you can assume that your velocity will increase....
{}
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jdg_303828
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4044362
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: “ feature branches ” is when each feature is developed in its own branch and only merged into the main line when it has been tested and is ready to ship. This allows the prod...
Feature branches certainly make refactoring much harder. They also make things like continuous integration and deployment harder, because you are ballooning the number of parallel development streams that need to be built an tested. You are also obviating the central tenet of "continuous integration" -- that everyone...
{}
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jdg_183146
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6357038
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Multiplication and division can be achieved using bit operators, for example i*2 = i<<1i*3 = (i<<1) + i;i*10 = (i<<3) + (i<<1) and so on. Is it actually faster to use say (i<...
Short answer: Not likely. Long answer:Your compiler has an optimizer in it that knows how to multiply as quickly as your target processor architecture is capable. Your best bet is to tell the compiler your intent clearly (i.e. i*2 rather than i << 1) and let it decide what the fastest assembly/machine code sequence i...
{}
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jdg_366867
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
57724
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I was taking a practice GMAT test and it had a question like this: $4^{21} \cdot 5^{11} = 2 \cdot 10^n$ What is $n$? The available answers were something like 16 22 23...
I'm assuming you meant $4^{11}\cdot 5^{21} = 2\cdot 10^n$. The rules you want to know for exponents can be found on http://en.wikipedia.org/wiki/Exponentiation (this page has a lot of information, so depending on what you need, you may only be interested in http://en.wikipedia.org/wiki/Exponentiation#Identities_and_pro...
{}
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jdg_179385
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2587557
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: $$\lim_{x\to0}\left(\frac{\tan (x)+4\tan(2x)-3\tan(3x)}{x^2\tan(x)}\right)$$ Now provide the response and nothing else.
Hint: $$\tan x+\tan2x+3(\tan2x-\tan3x)=\dfrac{\sin3x}{\cos x\cos2x}-\dfrac{3\sin x}{\cos2x\cos3x}$$ $$=\dfrac{\sin3x\cos3x-3\sin x\cos x}{\cos x\cos2x\cos3x}$$ $$=\dfrac{\sin6x-3\sin2x}{2\cos x\cos2x\cos3x}$$ $$=\dfrac{(3\sin2x-4\sin^32x)-3\sin2x}{2\cos x\cos2x\cos3x}$$ Now use $\lim_{h\to0}\dfrac{\sin h}h=1$
{}
{'log_upvote_score': 4, 'links': ['https://math.stackexchange.com/questions/2587557', 'https://math.stackexchange.com', 'https://math.stackexchange.com/users/512088/']}
jdg_286116
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
87304
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render t...
You need a smoothed average, the easiest way is to take the current answer (the time to draw the last frame) and combine it with the previous answer. // eg.float smoothing = 0.9; // larger=more smoothingmeasurement = (measurement * smoothing) + (current * (1.0-smoothing)) By adjusting the 0.9 / 0.1 ratio you can change...
{}
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jdg_232030
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
391564
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I have been looking at the Boolean OR function and Im trying to find its integral analogue. What I mean is: Boolean AND (x, y) where x and y are Boolean Values with 0 = ...
Consider an integral of the sort $$\int_{\mathbb R^n}K(x,y)f(y)\,dy$$for some smooth function $f$ and a kernel $K$. To allow the integral to converge at infinity we'll assume that $f$ has compact support. Integrals of that sort appears in the integral equations to which, in particular, boundary value problems for PDE a...
{}
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jdg_214660
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
39836010
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I want to execute some code every time the page changes. I could add add an ngOnDestroy method to every page. It appears that I could use Ionic 2 page lifecycle hooks (e.g. i...
Ionic2 doesn't use Angular2's Router . They have their own implementation NavController . I see that you can subscribe to Angular 2 Router events. How do I translate that for use in Ionic 2? You can merge all the NavController Events and subscribe to it. allEvents = Observable.merge( this.navController...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/39836010', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/484488/']}
jdg_315655
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1580737
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Just wondering, if I statically create an object that has a pointer as a data member and then the object goes out of scope, what happens to the pointer?Chuma Now provide the...
Nothing happens to the pointer at all, it just ceases to exist. If it was pointing to something that needed to be freed, you just got a memory leak. Either add code to the destructor that does the proper cleanup of the pointer, or use "smart pointers" that clean up after themselves automatically. Edit: If you actually ...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/1580737', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/24391/']}
jdg_261651
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1070992
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Today in class we learned that when you have an improper integral like this one: $$\int_{-\infty}^\infty {f(x)} \: dx$$ you must split it before you do the limits (like ...
The problem is that limiting to both infinities at the same time can overlook divergence. However, the value: $\lim\limits_{a \to \infty} \int_{-a}^a f(x)\,dx$ (if it exists) is important enough to have a name: the principal value . So why can't you just do the limit like this? Consider $\int_{-\infty}^\infty x\,dx$ No...
{}
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jdg_353502
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4863051
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a winforms app that has 37 textboxes on the screen. Each one is sequentially numbered: DateTextBox0DateTextBox1 ...DateTextBox37 I am trying to iterate through the tex...
To get all controls and sub-controls recursively of specified type, use this extension method: public static IEnumerable<TControl> GetChildControls<TControl>(this Control control) where TControl : Control{ var children = (control.Controls != null) ? control.Controls.OfType<TControl>() : Enumerable.Empty<TControl>();...
{}
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jdg_257890
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1778903
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: This is probably a rookie question, but I need to know what I need to know :) Why do some HTML tags end with a forward slash? For example this: <meta name="keywords" content=...
In XHTML <foo /> is shorthand for <foo></foo> . In HTML the syntax is obscure and marked as "don't do this" as browsers don't support it. If you are writing XHTML but pretending it is HTML (so that browsers (such as Internet Explorer 8) which don't support XHTML can handle it), then elements defined as EMPTY in the spe...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/1778903', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/-1/']}
jdg_212482
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
26567687
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have this: vector<Object*> myVec; and adding my objects to it like this: Object *obj1 = new Object;myVec.push_back(obj1); Let's assume that I have 100 objects in this way a...
You're almost there: Search the element by value : myVec.erase(std::remove(myVec.begin(), myVec.end(), obj37), myvec.end());// ^^^^^ Alternatively, if you know that the element is in position 36 (0-based), you can erase it directly: myvec.erase(myvec.begin() + 36); Or, i...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/26567687', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/4163082/']}
jdg_158992
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
17840004
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I'm currently attending the course "Compilers Construction" and I'm developing a simplified Java grammar in Antlr 4. The part involving Java grammar works just fine, except t...
Reason for the Error As per the error message, .SelectNodes() requires that the xpath string parameter evaluates to a node set, e.g. this xpath will return an XmlNodeList containing 3 nodes: var nodeSet = document.SelectNodes("/altinkaynak/DOVIZ"); Supplying an xpath which returns a single node is also acceptable - the...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/17840004', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2615517/']}
jdg_307106
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
14033894
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a thread called TMyThread and I overrode the Execute procedure like this: procedure TMyThread.Execute; Begin repeat //Some Work Sleep(5000); //Some Wo...
Your thread's Execute method must regularly check the state of the thread's Terminated property. And if it is True , then the thread Execute method must exit. So, a typical Execute method might look like this: procedure TMyThread.Execute;begin while not Terminated do DoNextPieceOfWorkend; It looks like your thread ...
{}
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jdg_357371
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1630238
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Given the following equation: $$10 = 4^x \pmod {18}$$ How can one know what are the correct values for $x$ ? Now provide the response and nothing else.
Let us define a ring-homomorphism $u:R\to T$ by the universal property that a ring-homomorphism $f:R\to S$ factors (uniquely) through $u$ iff $f$ maps every element of $D$ to a unit and every element of $\mathfrak{a}$ to $0$. From the universal property of $D^{-1}R$, we see that any $f$ which factors through $u$ must ...
{}
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jdg_76283
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
39748240
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have set a pan gesture to an imageView, though it's action method never being called in swift 3. let panGesture = UIPanGestureRecognizer(target: self, action: #selector(sel...
If you want the code in the parent's constructor to be executed, you need to call parent::__construct(…) at some point. It does not technically matter when you do so. Sometimes it makes more sense to do a little work in the overridden constructor before calling the parent's constructor, sometimes you rely on work the p...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/39748240', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/3360360/']}
jdg_367910
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
451025
Below is a question asked on the forum physics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Momentum is defined by the product of mass and velocity. Now a projectile out of a gun has to have high velocity to penetrate a human body, as its mass isn't signific...
Firstly, some guns do give quite a kick! So the effect you are thinking of is real. However, conservation of momentum means that $m_\text{bullet} \cdot v_\text{bullet} = m_\text{gun} \cdot v_\text{gun}$ . So the bullet's velocity is greater than that of the gun by a ratio of $\frac{m_\text{gun}}{m_\text{bullet}}$ . ...
{}
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jdg_289859
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
9632591
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: The first match works, but not the second one.Is there any way to match without declaring variables, beside using a chain of if/elif ? (Note that I use the value elem, while ...
Your first pattern actually doesn't match typeof<string> . It binds propType to a new value t shadowing the previous t which is equals to typeof<string> . Since typeof<string> is not a literal, the second pattern doesn't work as well (although it is a redundant pattern in your example). You have to use when guard as fo...
{}
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jdg_260501
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
29970681
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have recently followed a tutorial over on Thinkster for creating a web app using Angular and Firebase. The tutorial uses the Firebase simpleLogin method allows a 'profile' ...
There are two things to do here, a client-side check and a server-side rule. At the client side, you want to check whether the username already exists, so that you can tell the user that their input is invalid, before sending it to the server. Where exactly you implement this up to you, but the code would look somethin...
{}
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jdg_258607
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
368267
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Find all functions satisfying $f(2x)=2f'(x)f(x)$ Under given condition, can't we find explicit solutions? Now provide the response and nothing else.
If one restrict oneself to functions which admit a power series expansion at $x = 0$,following is the list of solutions I found: $$f(x) = \begin{cases}0, & f(0) = 0, f'(0) = 0,\\k \sin(x/k), & f(0) = 0, f'(0) = 1, f'''(0) < 0\\x, & f(0) = 0, f'(0) = 1, f'''(0) = 0\\k \sinh(x/k), & f(0) = 0, f...
{}
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jdg_381247
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
316639
Below is a question asked on the forum math.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I did the following. Using the LIATE rule: $$\begin{align*}u &=& \cos(2x)\\u\prime &=& -2 \sin(2x)\\v &=& e^x\\v\prime&=&e^x \end{align*}$$ We get: $$\int e^x \cos(2x)dx...
There is no need to ask whether it is right. You can differentiate to check. A little problem: the arbitrary constant of integration is missing, It is good to get accustomed to the approach you took, it is useful to master it. Here is an alternative. My guess is that the answer will look like $(A\cos 2x+B\sin 2x)e^x$...
{}
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jdg_285334
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
48951
Below is a question asked on the forum mathoverflow.net. Provide a good and informational response to it like a helpful human would. Question: It is asserted in A Course in Metric Geometry by Burago, Burago, Ivanov that there can be no more than continuum of mutually nonisometric compact spaces How is this proven? It...
I think "compact" can be even weakened here to "separable and complete" (and regarding your first guess, total boundedness is essentially used to prove that compact implies separable). Here's a sketch: any such space is determined, up to isometry, by the restriction of the metric to a countable dense subset. Thus the...
{}
{'log_upvote_score': 4, 'links': ['https://mathoverflow.net/questions/48951', 'https://mathoverflow.net', 'https://mathoverflow.net/users/1540/']}
jdg_349802
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2327081
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I want to update multiple rows like below update mytable set s_id = {0} where id = {1} (Here s_id is evaluated based on some complex logic). For performance reason, updates s...
Yes, you can use an SqlDataAdapter . The SqlDataAdapter has InsertCommand and UpdateCommand properties which allow you to specify an SQLCommand to use to insert new rows into the database and an SqlCommand to update rows in the database respectively. You can then pass a DataTable to the Update method of the dataadapter...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/2327081', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/135464/']}
jdg_349959
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
39724197
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: "ajax": { "url": "<%=request.getContextPath()%>/Home?value=getreqs5", "data": function ( json,callback) { var oTable = $('#fifth').dataTable(); ...
If you are using datatables 1.10 you can get the total rows number with "ajax": { "url" : "<%=request.getContextPath()%>/Home?value=getreqs5", "dataSrc": function(res){ var count = res.data.length; alert(count); return res.data; }} With the dataSrc you can get the ajax success callba...
{}
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jdg_220026
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
13167
Below is a question asked on the forum mathoverflow.net. Provide a good and informational response to it like a helpful human would. Question: In Lecture Notes in Mathematics 1488, Lawvere writes the introduction to the Proceedings for a 1990 conference in Como. In this article, Lawvere, the inventor of Toposes and A...
The notion of a "category of Being" that Lawvere discusses there is the notion that more recently he has been calling a category of cohesion . I'll try to illuminate a bit what's going on . I'll restrict to the case that the category is a topos and say cohesive topos for short. This is a topos that satisfies a small co...
{}
{'log_upvote_score': 7, 'links': ['https://mathoverflow.net/questions/13167', 'https://mathoverflow.net', 'https://mathoverflow.net/users/2811/']}
jdg_315129
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6158053
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I'm trying to get the number of days, weeks, months since Epoch in Java. The Java Calendar class offers things like calendar.get(GregorianCalendar.DAY_OF_YEAR), or Calendar.g...
You can use the Joda Time library to do this pretty easily - I use it for anything time related other than using the standard Java Date and Calendar classes. Take a look at the example below using the library: MutableDateTime epoch = new MutableDateTime();epoch.setDate(0); //Set to Epoch timeDateTime now = new DateTime...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/6158053', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/446783/']}
jdg_77580
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
10668282
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Lets say I have a list a=[1,2,3] And I want to know if at least one of the numbers in it exist in another list, like this one: b=[4,5,6,7,8,1] In other words, I want to know ...
There are many ways to do this. The most direct translation is: any_in = lambda a, b: any(i in b for i in a) You could also use various things involving sets, such as: any_in = lambda a, b: bool(set(a).intersection(b)) (which depends on the elements of a being hashable, but if that's true, it'll probably be faster to m...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/10668282', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/-1/']}
jdg_87702
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
16872977
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: This code has two parts: The first one is supposed to fade in the .toTop button when the user scrolls down and keep it hide otherwise. The second part is supposed to bring th...
This what I use : Every occurence is replaced (not only prefix) Case and accent are ignored while searching but retained in the result. It uses directly SpannableString , which you can use in setText() . I believe it's more efficient than using an intermediate html step. . public static CharSequence highlight(String se...
{}
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jdg_210796
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
229803
Below is a question asked on the forum electronics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I'm outputting a 6-bit number on PORTA (RA0-RA5), how do I write to those bits without messing up what is already on RA6 and RA7? For example if I want to output ...
A procedure called "Read-Modify-Write". What it involves is entirely in the name. You read. Then you modify. Then you write. Read: //Read in the value of the output registertempVariable = [output register] Modify: //set all bits you want to modify to be 0.tempVariable &= [some mask];//or in the values of the bits with ...
{}
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jdg_312246
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
17327266
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I've been learning the object initializer in C# recently, but now I'm wondering how it works when it conflicts with the constructor. public class A{ public bool foo { get;...
From the documentation : The compiler processes object initializers by first accessing the default instance constructor and then processing the member initializations. This means that in the simplest case (named object initialization) it is basically shorthand (or syntactic sugar) for calling the default constructor ...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/17327266', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2044733/']}
jdg_303590
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6691825
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I am parsing Xml file located in web server and storing parsed data in to database. for my app I am using data from database. I need to parse the xml file only if the file is...
Since you are retrieving your .xml file from a web server, this should be relatively easy without having to do a server side MD5 sum. If you are doing a HTTP request for the xml file you can simply perform a HEAD request from the web server and this will return if the file has changed/modified or if it doesn't exist. ...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/6691825', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1932241/']}
jdg_154062
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
37474237
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: This is driving me nuts. I have looked everywhere and cannot figure this out. Check it out... let findMeButton = UIButton(type: UIButtonType.System) findMeButton.translate...
so here i wrote a code to add the button on view. Swift 3: let button = UIButton(type: UIButtonType.System) as UIButton// set the framebutton.frame = CGRectMake(100, 100, 100, 50)// add imagebutton.setBackgroundImage(UIImage(named:"SearchIcon" ), forState: UIControlState.Normal)// button titlebutton.setTitle("Test Bu...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/37474237', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/5657244/']}
jdg_148712
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
69276367
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I am trying to run a project on the Xcode13, after running a pod cache clean --all, deleting the derived data, and running a pod update.When I clean the project and build itt...
I had this problem surface in Xcode 13.0. Mohamed Tarek 's solution worked for me, but… I was using cocoapods, so I needed a solution not blown away by pod install ; or more specifically fixed with pod install . Adding the following to the bottom of the Podfile resolved it. post_install do |installer| installer.pods_p...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/69276367', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/4230687/']}
jdg_337877
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5325
Below is a question asked on the forum security.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Suppose I have a file with records, and I have two options to encrypt it: encrypt the file as a whole encrypt each record separately and store them together. Which w...
Before encrypting, you must first define what kind of property you want to achieve, and what are the paths which a putative attacker may use. Encryption is a tool for gaining confidentiality. Most security models also need some kind of controlled integrity check ("only passive" attackers are very rare). There are encry...
{}
{'log_upvote_score': 4, 'links': ['https://security.stackexchange.com/questions/5325', 'https://security.stackexchange.com', 'https://security.stackexchange.com/users/3436/']}
jdg_306361
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
56973265
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Hey I am trying to comprehend what does express-async-handler do? It was used in one of the repo I was looking. From their docs, it says Simple middleware for handling except...
The example in the npm page shows this: express.get('/', asyncHandler(async (req, res, next) => { const bar = await foo.findAll(); res.send(bar)})) Without asyncHandler you'd need: express.get('/',(req, res, next) => { foo.findAll() .then ( bar => { res.send(bar) } ) .catch(next); // error pass...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/56973265', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/10433835/']}
jdg_143392
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
17250243
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a simple query that selects one field and only one row, thus one value. Is there any way to make it return NULL if the query results in an empty set? Instead of return...
select (Your entire current Select statement goes here) as Aliasfrom dual dual is a built in table with a single row that can be used for purposes like this. In Oracle this is mandatory. MySQL supports it , but you can also just select a single value without specifying a table, like so: select (Your entire current ...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/17250243', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/633098/']}
jdg_83699
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
1171
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I need to be able to manipulate a large (10^7 nodes) graph in python. The data corresponding to each node/edge is minimal, say, a small number of strings. What is the most ef...
I would strongly advocate you look at NetworkX . It's a battle-tested war horse and the first tool most 'research' types reach for when they need to do analysis of network based data. I have manipulated graphs with 100s of thousands of edges without problem on a notebook. Its feature rich and very easy to use. You will...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/1171', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/280/']}
jdg_234801
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
88707
Below is a question asked on the forum cs.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: When trying to prove that a recurrence $g(n)$ satisfies $g(n) = O(f(n))$, we sometimes are not able to find a valid $C$ to show the upper bound, so we try to prove it is $...
The answer to your first question (whether $f(n) = O(g(n))$ implies $f(n) = O(g(n-d))$) depends on the function $g$: indeed, what you want holds iff $g(n) = O(g(n-d))$. This is a relation that holds for many functions, for example polynomials and exponentials, but not for the function $g(n) = 2^{2^n}$. As for your seco...
{}
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jdg_302715
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
22087311
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: My situation is somewhat complex, I'll try to explain it as succinctly as possible. I'm currently using query_posts to modify the main query on custom pages on my site, which...
How to use the pre_get_posts hook to display list of posts on a page, through a custom page template? I've been playing with the pre_get_posts hook and here's one idea Step #1: Ceate a page called for example Show with the slug: example.com/show Step #2: Create a custom page template: tpl_show.php located in the curren...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/22087311', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1201447/']}
jdg_83908
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
218693
Below is a question asked on the forum mathematica.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Context This is fairly general and simple question, (probably because it has a simple solution?). I want to define a mesh (e.g. to be used with Plot3D or FEM or ...
One can use DiscretizeRegion to obtain a mesh: slice = DiscretizeRegion[ RegionIntersection[ Ball[], InfinitePlane[{0, 0, 0}, {{1, 0, 0}, {0, 1, 0}}] ], MeshCellStyle -> {1 -> Black}] Or SliceDensityPlot3D to get a visual: SliceDensityPlot3D[1, {"ZStackedPlanes", 10}, {x, y, z} ∈ Ball[], Axes -> False, Boxed...
{}
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jdg_121964
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4901899
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: There are two elements in play: $('#myInput') // an input field for search$('#myList') // a list to display search results I want to hide the list when the input no longer ha...
You can accomplish this by keeping a global variable, and setTimouts, to wait a delay of 200ms and then check if one of the 2 elements have focus. var keepFocus = false;function hideList(){ if(!keepFocus){ $('#myList').hide(); }}$('#myInput').blur(function() { keepFocus = false; window.setTimeout(hid...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/4901899', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/7596/']}
jdg_281405
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2617055
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I need an algorithm that return all possible combination of all characters in one string. I've tried: $langd = strlen($input); for($i = 0;$i < $langd; $i++){ $tempStrang ...
You can use a back tracking based approach to systematically generate all the permutations: // function to generate and print all N! permutations of $str. (N = strlen($str)).function permute($str,$i,$n) { if ($i == $n) print "$str\n"; else { for ($j = $i; $j < $n; $j++) { swap($str,$i,$j); ...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/2617055', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2224246/']}
jdg_229810
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
10218740
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: the Rails Guides says: If there are missing precompiled files in production you will get an Sprockets::Helpers::RailsHelper::AssetPaths::AssetNotPrecompiledError exception ...
Actually two things needed to do: config.assets.precompile += %w( *.js *.css ) as described here , and config.serve_static_assets = true for local production testing when using rail s of course using rake assets:precompile however in my case - without config.assets.precompile this would have no effect since the manifes...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/10218740', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/400745/']}
jdg_101718
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
2387981
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have two lists which are guaranteed to be the same length. I want to compare the corresponding values in the list (except the first item) and print out the ones which dont ...
list1=[1,2,3,4]list2=[1,5,3,4]print [(i,j) for i,j in zip(list1,list2) if i!=j] Output: [(2, 5)] Edit: Easily extended to skip n first items (same output): list1=[1,2,3,4]list2=[2,5,3,4]print [(i,j) for i,j in zip(list1,list2)[1:] if i!=j]
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/2387981', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/178437/']}
jdg_240419
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
8468774
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: If I pass the following code through my GCC 4.7 snapshot, it tries to copy the unique_ptr s into the vector. #include <vector>#include <memory>int main() { using move_only...
The synopsis of <initializer_list> in 18.9 makes it reasonably clear that elements of an initializer list are always passed via const-reference. Unfortunately, there does not appear to be any way of using move-semantic in initializer list elements in the current revision of the language. Specifically, we have: typedef ...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/8468774', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/46642/']}
jdg_86373
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
67500
Below is a question asked on the forum electronics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Why can't I use std::string or any other objects from the C++ Standard Library in my sketches for Arduino? #include <string> doesn't throw an error, so it clearly...
The Arduino supports two kinds of string: C-style character arrays, which the Arduino documentation refers to as strings (lower case 's') String objects, which the the Arduino documentation refers to as Strings (capital 'S') The later is similar to std::string from the C++ standard library but slightly different. It is...
{}
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jdg_103646
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
6065258
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Can anyone tell me how I should read the errors in Logcat? I'd like to understand where my problem is. At the moment, I tried to read it but can't find the cause of the crash...
The second "part" of your log is going to be what is important for you in this instance. Caused by: java.lang.NullPointerException This means that somewhere in your code something is set to null and you are trying to use it as though it isn't. The next few lines tell you where in your code you can find the error. at co...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/6065258', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/758266/']}
jdg_204051
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
25960
Below is a question asked on the forum astronomy.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Would you be able to see the curvature of Mars from the top of Olympus Mons? And how much curvature would you see if it was visible, would it be only barely detecta...
The impression I get from the Wikipedia page on Olympus Mons is that from the top of the volcano, you can't even see parts of Mars that aren't Olympus Mons. Quoted from above: Because of the size of Olympus Mons and its shallow slopes, an observer standing on the Martian surface would be unable to view the entire profi...
{}
{'log_upvote_score': 4, 'links': ['https://astronomy.stackexchange.com/questions/25960', 'https://astronomy.stackexchange.com', 'https://astronomy.stackexchange.com/users/2844/']}
jdg_74872
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
306439
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have this Trigger in Postgresql that I can't just get to work (does nothing). For understanding, there's how I defined it: CREATE TABLE documents ( ... modification_t...
Use the following code within a trigger function, then watch the 'messages' tab in pgAdmin3 or the output in psql: RAISE NOTICE 'myplpgsqlval is currently %', myplpgsqlval; -- either thisRAISE EXCEPTION 'failed'; -- or that To see which triggers actually get called, how many times etc, the following statement is...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/306439', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/35189/']}
jdg_378954
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4644415
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I am trying to use Console class to get input from user but a null object is returned when I call System.console() . Do I have to change anything before using System.console?...
Using Console to read input (usable only outside of an IDE): System.out.print("Enter something:");String input = System.console().readLine(); Another way (works everywhere): import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;public class Test { public static void main(String[] ...
{}
{'log_upvote_score': 8, 'links': ['https://Stackoverflow.com/questions/4644415', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/553670/']}
jdg_219628
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
368944
Below is a question asked on the forum unix.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: Recently I noticed we have 3 options to set environment variables: export envVar1=1 setenv envVar2=2 env envVAr3=3 If there are other ways, please enlighten us. When sho...
export VARIABLE_NAME='some value' is the way to set an environment variable in any POSIX-compliant shell ( sh , dash , bash , ksh , etc.; also zsh). If the variable already has a value, you can use export VARIABLE_NAME to make it an environment variable without changing its value. Pre-POSIX Bourne shells did not suppor...
{}
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jdg_177154
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5765319
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a bunch of ErrorDocument directives in my .htaccess file in order to catch almost all the possible errors Apache can throw at a user, and to redirect said user to my e...
A few different mis-conceptions in the question. The following PHP code: header("HTTP/1.0 500 Internal Server Error");die(); Will never trigger an Apache error page - it's triggering your browser's default error page. Once control has been given over to PHP, it does not go back to Apache for error handling. ErrorDocume...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/5765319', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/504357/']}
jdg_109837
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
8836299
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a bunch of static method names, how do I execute them. I think I can use reflection, but how to do that? Now provide the response and nothing else.
directly from the interwebz Class<?> class1; try { class1 = Class.forName(CLASS); Method method = class1.getMethod(METHOD, String.class); Object o = method.invoke(null, NAME); System.out.println(o); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (IllegalArg...
{}
{'log_upvote_score': 6, 'links': ['https://Stackoverflow.com/questions/8836299', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/496949/']}
jdg_135055
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4088532
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I found this some time ago and have been using it since; however, looking at it today, I realized that I do not fully understand why it works. Can someone shed some light on...
I've never seen it but it seems to make sense. At first it orders by s.type != 'Nails' . This is false for every row that contains Nails in the type column. After that it is sorted by Bolts . Again for all columns that do contain Bolts as a type this evaluates to false. And so on. A small test reveals that false is ord...
{}
{'log_upvote_score': 7, 'links': ['https://Stackoverflow.com/questions/4088532', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/469437/']}
jdg_184513
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
22970403
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: When I scroll mouse wheel several MouseWheel events are fired. And I'm using these events to scale some image. I want to call a method the moment the series of MouseWheel eve...
Actually as mose wheel rotation is endless there is no special event to notify that the used ended scrolling. However in your case you can just test whether the user stopped scrolling for a short period of time. This can be done with a simple timer: //Use dispatcher timer to avoid problems when manipulating UI related ...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/22970403', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/2279363/']}
jdg_124176
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
5540
Below is a question asked on the forum mathematica.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I am exporting an animation created using Manipulate in the .avi format. However the video runs very fast (I am putting it in Keynote). Its speed seems independen...
The trick is using a combination of "FrameRate" , an option of Export , and AutorunSequencing , an option of Manipulate . The former determines the number of frames/second of the movie whereas the latter determines how long a sweep of the control takes. With one control, that will be the length of the movie. Export["ou...
{}
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jdg_106867
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
16105180
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I've got the following setup. I have to send an image over http to a browser or other device. The tricky thing about the whole it is, that I have very limited control over th...
To answer your question, display: none does not reduce load time . It still loads the content/classes/code in question, but the browser doesn't display/render them. It sounds like you're using a mobile-first approach, so you could either: Load all assets/classes/scripts regardless of mobile/tablet/desktop class you're ...
{}
{'log_upvote_score': 5, 'links': ['https://Stackoverflow.com/questions/16105180', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/1119183/']}
jdg_95585
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4560321
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: UPDATE | I've uploaded a sample project using the panel and crashing here: http://w3style.co.uk/~d11wtq/BlocksCrash.tar.gz (I know the "Choose..." button does nothing, I've n...
It's a little odd for you to retain a parameter in one method and release it in another, when that object is not an instance variable. I would recommend making the completionHandler bit of your beginSheet stuff an instance variable. It's not like you'd be able to display the sheet more than once at a time anyway, and ...
{}
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jdg_334810
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
13518802
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: For text bozo__foo!!bar.baz , how to split an NSString containing this into (bozo, foo, bar, baz) ? That is, separe it in components with strings (delimiters) __ , !! and . ...
You can split the strings using NSCharacterSet. Try this NSString *test=@"bozo__foo!!bar.baz";NSString *sep = @"_!.";NSCharacterSet *set = [NSCharacterSet characterSetWithCharactersInString:sep];NSArray *temp=[test componentsSeparatedByCharactersInSet:set];NSLog(@"temp=%@",temp);
{}
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jdg_238836
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
52527612
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Update Changed the collision code again and made a Component for AABB, now it seems that the problem is only on Horizontal collision, it doesn't push the object enought it th...
As you have mentioned SparkSQL does support DATEDIFF but for days only. I would also be careful as it seems the parameters are the opposite way round for Spark, ie --SQL ServerDATEDIFF ( datepart , startdate , enddate )--SparkDATEDIFF ( enddate , startdate ) Spark does however support a similar function called months_...
{}
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jdg_380777
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
4428267
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: Has anyone worked on calling a C# module from C module. I tried searching on internet but didn't find good examples. Though lot of sites say something like using COM interop ...
There is more than just COM interop if you want to call into managed code from C or C++. The are also the following lesser known methods (taken from MSDN FAQ ): How do I call a .NET assembly from native Visual C++? There are basically four methods tocall .NET assembly from native VC++ code: CLR Hosting API : Native VC+...
{}
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jdg_254287
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
108133
Below is a question asked on the forum softwareengineering.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I personally stay awake late at night, coding and enjoying working on personal projects. My other colleagues also feel the same and like coding at night. ...
As pointed out in a comment by SK-Logic, there is some scientific evidence to back this up. From wikipedia's article on night owls : Researchers have found that 'differences in a fundamental property of the circadian timing system , its intrinsic period, will determine whether someone is an early bird, who awakens be...
{}
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jdg_331113
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
20327
Below is a question asked on the forum arduino.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I'm trying to make my chinese arduino (which use a chinese CH340G chip) speaks to itself via serial.I have wired rx/tx together. Then, I run the arduino IDE and go to...
As Mikael Patel pointed out in his answer, you have set up a voltage divider. Mikael has thoughtfully provided a schematic of the clone Uno, where the relevant part is here: Equivalent circuit If you jumper together pins D0 and D1 (Rx and Tx) on the Uno effectively you have made this circuit: Testing If I set up this w...
{}
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jdg_180759
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
648900
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a function declared like so: template <typename T> T read(); and defined like so: template <typename T>T packetreader::read() { offset += sizeof(T); return *(T*)...
You need to use the export keyword. However, I don't think G++ has proper support, so you need to include the template function's definition in the header so the translation unit can use it. This is because the <int> 'version' of the template hasn't been created, only the <typename T> 'version.' An easy way is to #inc...
{}
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jdg_337070
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
40077969
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: I have a variable named foo and function named foo. //variable followed by function declarationvar foo="bar";function foo(){ return "bar";}//function declaration followed by...
When I call foo it returns string bar ; Function declarations are hoisted to the top of their scope. The function definition are moved above by the compiler. And then the variable is overwriting to string. Code is equivalent as function foo() { return "bar";}// Overwriting the valuevar foo = "bar" So, in both the ca...
{}
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jdg_246130
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
17638730
Below is a question asked on the forum Stackoverflow.com. Provide a good and informational response to it like a helpful human would. Question: The following code runs without giving any errors or warnings: #include <stdio.h>int main(){ int i, j; int p = 0, q = 2; for(i = 0, j = 0; i < p, j < q; i++, j++){ ...
The condition i < p, j < q is allowed but probably isn't what was intended as it discards the result of the first expression and returns the result of j < q only. The comma operator evaluates the expression on the left of the comma, discards it then evaluates the expression on the right and returns it. If you want to ...
{}
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jdg_272369
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
81031
Below is a question asked on the forum softwareengineering.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: I was reading a programming article and it mentioned the Decorator pattern. I've been programming for awhile but without any kind of formal education or t...
The decorator pattern is one that favours composition over inheritance [another OOP paradigm that is useful to learn about] The main benefit of the decorator pattern - over subclassing is to allow more mix & match options. If you have, for instance, 10 different behaviours that a window can have, then this means - with...
{}
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jdg_181895
PrimeIntellect/stackexchange-question-answering
stackexchange
llm_judgeable_groundtruth_similarity
9510
Below is a question asked on the forum electronics.stackexchange.com. Provide a good and informational response to it like a helpful human would. Question: What diode modifiers are used in practice to model LEDs with SPICE (Berkeley v.3f5)? These are available to me: # Name Parameter Units...
As you stated, there are 3 parameters that dictate the DC response of a diode. Those are the saturation current ( IS ), the emission coefficient ( N ), and the ohmic resistance ( RS ). I was able to fit the curve with a fairly high accuracy, so I'll document my model procedure. The SPICE model for the diode closely mat...
{}
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jdg_163443
PrimeIntellect/stackexchange-question-answering