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[ { "content": "Create a Node.js server that can handle multiple concurrent connections on port 8080. The server should be able to handle requests from multiple clients simultaneously without any data loss or corruption. The server should also support HTTPS connections.\n\nAdditionally, implement a session manage...	[ { "content": "Create a Node.js server that can handle multiple concurrent connections on port 8080. The server should be able to handle requests from multiple clients simultaneously without any data loss or corruption. The server should also support HTTPS connections.\n\nAdditionally, implement a session manage...	9	9
[ { "content": "You are given an object in JavaScript that may contain circular references. Your task is to write a function that converts the object to a JSON string, while also preserving the order of the object properties.\n\nThe function should have the following signature:\n\n```javascript\nfunction convertO...	[ { "content": "You are given an object in JavaScript that may contain circular references. Your task is to write a function that converts the object to a JSON string, while also preserving the order of the object properties.\n\nThe function should have the following signature:\n\n```javascript\nfunction convertO...	6	4
[ { "content": "Write a JavaScript function to count the number of occurrences of each character in a given string. The function should return an object where each key-value pair represents a character and its corresponding count. The function should also ignore any non-alphabetic characters and be case-sensitive...	[ { "content": "Write a JavaScript function to count the number of occurrences of each character in a given string. The function should return an object where each key-value pair represents a character and its corresponding count. The function should also ignore any non-alphabetic characters and be case-sensitive...	7	7
[ { "content": "Write a JavaScript function to check if a string contains the given substring in a case-sensitive manner, but the function should not use built-in string methods like includes() or indexOf().\n\nThe function should have a time complexity of O(n), where n is the length of the string.\n\n**Reference...	[ { "content": "Write a JavaScript function to check if a string contains the given substring in a case-sensitive manner, but the function should not use built-in string methods like includes() or indexOf().\n\nThe function should have a time complexity of O(n), where n is the length of the string.\n\n**Reference...	7	1
[ { "content": "Please write a function in JavaScript that takes a string as input and returns a new string with the color of all the headings changed to blue, all the paragraphs changed to red, and all the hyperlinks changed to green. You can assume that the input string will only contain valid HTML code.\n\nExa...	[ { "content": "Please write a function in JavaScript that takes a string as input and returns a new string with the color of all the headings changed to blue, all the paragraphs changed to red, and all the hyperlinks changed to green. You can assume that the input string will only contain valid HTML code.\n\nExa...	7	7
[ { "content": "Write a JavaScript function that sorts an array of strings alphabetically. The function should ignore the case of the strings and should also handle strings that contain special characters. Additionally, the function should return a new array instead of modifying the original array. The sorting sh...	[ { "content": "Write a JavaScript function that sorts an array of strings alphabetically. The function should ignore the case of the strings and should also handle strings that contain special characters. Additionally, the function should return a new array instead of modifying the original array. The sorting sh...	9	9
[ { "content": "Create a JavaScript program to convert temperatures between Celsius and Kelvin, using the formula: Kelvin = Celsius + 273.15. Your program should also validate that the input temperature is within the range of -273.15 to 1000 Celsius, and display an error message if the input is invalid. Additiona...	[ { "content": "Create a JavaScript program to convert temperatures between Celsius and Kelvin, using the formula: Kelvin = Celsius + 273.15. Your program should also validate that the input temperature is within the range of -273.15 to 1000 Celsius, and display an error message if the input is invalid. Additiona...	9	9
[ { "content": "Please write a full-stack web application that allows users to register for an account. The registration form should include fields for the user's name, email address, password, and phone number. Implement client-side validation to ensure that the email address is in the correct format and the pas...	[ { "content": "Please write a full-stack web application that allows users to register for an account. The registration form should include fields for the user's name, email address, password, and phone number. Implement client-side validation to ensure that the email address is in the correct format and the pas...	9	9
[ { "content": "What is the difference between variables declared with let and const in JavaScript? Provide an example of incorrect code that tries to reassign a value to a variable declared with const. Explain why the error occurs and how it can be fixed.\n\nPlease also explain the concept of \"hoisting\" in rel...	[ { "content": "What is the difference between variables declared with let and const in JavaScript? Provide an example of incorrect code that tries to reassign a value to a variable declared with const. Explain why the error occurs and how it can be fixed.\n\nPlease also explain the concept of \"hoisting\" in rel...	6	1
[ { "content": "Implement a function in JavaScript that takes in an array of integers and returns the maximum sum of a subarray within the given array.\n\nThe time complexity of your solution should be no more than O(n), where n is the length of the input array. Additionally, the space complexity of your solution...	[ { "content": "Implement a function in JavaScript that takes in an array of integers and returns the maximum sum of a subarray within the given array.\n\nThe time complexity of your solution should be no more than O(n), where n is the length of the input array. Additionally, the space complexity of your solution...	9	9
[ { "content": "Create a function in JavaScript that takes two strings as parameters and returns the concatenation of both strings. However, if the second string is a substring of the first string, remove that substring from the first string before concatenating them.\n\nAdditionally, if either of the strings is ...	[ { "content": "Create a function in JavaScript that takes two strings as parameters and returns the concatenation of both strings. However, if the second string is a substring of the first string, remove that substring from the first string before concatenating them.\n\nAdditionally, if either of the strings is ...	7	2
[ { "content": "Given a JSON structure with multiple objects, write a JavaScript function that returns an array of all the values of the property \"firstName\" if the value of the property \"age\" is greater than or equal to 18, the value of the property \"lastName\" is not an empty string, and the value of the p...	[ { "content": "Given a JSON structure with multiple objects, write a JavaScript function that returns an array of all the values of the property \"firstName\" if the value of the property \"age\" is greater than or equal to 18, the value of the property \"lastName\" is not an empty string, and the value of the p...	9	4
[ { "content": "let sum = 0;\nlet i = 0;\n\nif (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n ...	[ { "content": "let sum = 0;\nlet i = 0;\n\nif (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n sum += i;\n i += 1;\n\n if (i <= 10) {\n ...	6	6
[ { "content": "Rearrange the following array of objects so that the output is sorted in ascending order by the \"age\" property. If two objects have the same age, then sort them in descending order by the \"name\" property. If two objects have the same age and the same name, then sort them in ascending order by ...	[ { "content": "Rearrange the following array of objects so that the output is sorted in ascending order by the \"age\" property. If two objects have the same age, then sort them in descending order by the \"name\" property. If two objects have the same age and the same name, then sort them in ascending order by ...	8	8
[ { "content": "Create a function in JavaScript that takes an array of integers as input. The function should return the sum of all the positive integers in the array. If the array contains any negative numbers, ignore them and continue with the iteration. \n\nConstraints:\n- The length of the input array should ...	[ { "content": "Create a function in JavaScript that takes an array of integers as input. The function should return the sum of all the positive integers in the array. If the array contains any negative numbers, ignore them and continue with the iteration. \n\nConstraints:\n- The length of the input array should ...	6	6
[ { "content": "Write a JavaScript function that takes an array of strings and returns a new array containing the length of each string. The function should have a time complexity of O(n), where n is the total number of characters in all the strings combined. Additionally, the function should not use any built-in...	[ { "content": "Write a JavaScript function that takes an array of strings and returns a new array containing the length of each string. The function should have a time complexity of O(n), where n is the total number of characters in all the strings combined. Additionally, the function should not use any built-in...	8	2
[ { "content": "Create a function in JavaScript to convert a given string to a positive or negative floating-point number in scientific notation. The string may contain non-digit characters in between the digits, at the beginning or end of the string, and may include a decimal point, a minus sign, or the letter \...	[ { "content": "Create a function in JavaScript to convert a given string to a positive or negative floating-point number in scientific notation. The string may contain non-digit characters in between the digits, at the beginning or end of the string, and may include a decimal point, a minus sign, or the letter \...	8	8
[ { "content": "Create a function in JavaScript to create a subset of a given array, but the subset must contain all possible combinations of k elements from the original array, where k is an even number between 2 and 10. Additionally, each combination must contain at least one element that is a prime number. The...	[ { "content": "Create a function in JavaScript to create a subset of a given array, but the subset must contain all possible combinations of k elements from the original array, where k is an even number between 2 and 10. Additionally, each combination must contain at least one element that is a prime number. The...	8	1
[ { "content": "Please implement a function in JavaScript to check if a given list of strings is a palindrome. The function should return true if the list is a palindrome, and false otherwise. A palindrome list is defined as a list where the concatenation of its elements in reverse order is the same as the origin...	[ { "content": "Please implement a function in JavaScript to check if a given list of strings is a palindrome. The function should return true if the list is a palindrome, and false otherwise. A palindrome list is defined as a list where the concatenation of its elements in reverse order is the same as the origin...	9	9
[ { "content": "Write a JavaScript method to return the sum of array elements, but do not use the built-in array methods like reduce(), sum(), or the addition operator (+). Additionally, you are not allowed to use any loops or recursion.", "role": "user" }, { "content": "One way to achieve this is by ...	[ { "content": "Write a JavaScript method to return the sum of array elements, but do not use the built-in array methods like reduce(), sum(), or the addition operator (+). Additionally, you are not allowed to use any loops or recursion.", "role": "user" }, { "content": "One way to achieve this is by ...	7	7
[ { "content": "Create a JavaScript function to simulate rolling a pair of fair dice with a random number generator, but restrict the outcome to only prime numbers. The function should return an array of all possible outcomes as pairs of prime numbers.\n\nFor example, if the dice are rolled 3 times, the function ...	[ { "content": "Create a JavaScript function to simulate rolling a pair of fair dice with a random number generator, but restrict the outcome to only prime numbers. The function should return an array of all possible outcomes as pairs of prime numbers.\n\nFor example, if the dice are rolled 3 times, the function ...	6	1
[ { "content": "Evaluate the sum and product of two numbers using a JavaScript expression. Additionally, calculate the sum and product of the sum and product of the two numbers. Print all the results. The numbers should be within the range of 1 to 100. The sum and product should not exceed 1000.", "role": "us...	[ { "content": "Evaluate the sum and product of two numbers using a JavaScript expression. Additionally, calculate the sum and product of the sum and product of the two numbers. Print all the results. The numbers should be within the range of 1 to 100. The sum and product should not exceed 1000.", "role": "us...	8	2
[ { "content": "Write a JavaScript function that takes in a number and a specific number of decimal places as parameters. The function should format the number to the specified decimal places and round it accordingly. The function should also handle negative numbers, numbers with a large number of decimal places,...	[ { "content": "Write a JavaScript function that takes in a number and a specific number of decimal places as parameters. The function should format the number to the specified decimal places and round it accordingly. The function should also handle negative numbers, numbers with a large number of decimal places,...	6	6
[ { "content": "Create a JavaScript function to extract the text from a given HTML element, but you cannot use any built-in HTML parsing libraries, regular expressions, or DOM manipulation methods such as `querySelector`, `getElementById`, or `innerHTML`. Additionally, the function should handle nested HTML eleme...	[ { "content": "Create a JavaScript function to extract the text from a given HTML element, but you cannot use any built-in HTML parsing libraries, regular expressions, or DOM manipulation methods such as `querySelector`, `getElementById`, or `innerHTML`. Additionally, the function should handle nested HTML eleme...	6	6
[ { "content": "Write a JavaScript function that extracts the unique prime numbers from a given string, while ignoring any non-alphanumeric characters. The function should meet the following requirements:\n\n1. The function should return an array containing all the extracted prime numbers in ascending order.\n2. ...	[ { "content": "Write a JavaScript function that extracts the unique prime numbers from a given string, while ignoring any non-alphanumeric characters. The function should meet the following requirements:\n\n1. The function should return an array containing all the extracted prime numbers in ascending order.\n2. ...	8	8
[ { "content": "Write a JavaScript program to convert month numbers to month names. However, you are not allowed to use any built-in JavaScript functions or libraries that directly provide month names. Additionally, you cannot use arrays or other data structures to store the month names. You have to implement the...	[ { "content": "Write a JavaScript program to convert month numbers to month names. However, you are not allowed to use any built-in JavaScript functions or libraries that directly provide month names. Additionally, you cannot use arrays or other data structures to store the month names. You have to implement the...	6	4
[ { "content": "Create a JavaScript function to accept a range of numbers (from 1 to 10000) and display all the prime numbers within that range. The function should also calculate the sum of all the prime numbers and display it along with the list of prime numbers. Additionally, the function should optimize the c...	[ { "content": "Create a JavaScript function to accept a range of numbers (from 1 to 10000) and display all the prime numbers within that range. The function should also calculate the sum of all the prime numbers and display it along with the list of prime numbers. Additionally, the function should optimize the c...	7	4
[ { "content": "Write a program in JavaScript that prints out the first 20 prime numbers.", "role": "user" }, { "content": "Here's a JavaScript program that prints out the first 20 prime numbers:\n\n```javascript\nfunction isPrime(num) {\n if (num <= 1) {\n return false;\n }\n\n for (let i = 2; ...	[ { "content": "Write a program in JavaScript that prints out the first 20 prime numbers.", "role": "user" }, { "content": "Here's a JavaScript program that prints out the first 20 prime numbers:\n\n```javascript\nfunction isPrime(num) {\n if (num <= 1) {\n return false;\n }\n\n for (let i = 2; ...	7	7
[ { "content": "Create a JavaScript function called \"createUser\" that takes in four parameters: name, age, location, and hobbies. The function should validate the input and return an object with properties name, age, location, and hobbies.\n\nThe name parameter must be a string containing at least 3 characters ...	[ { "content": "Create a JavaScript function called \"createUser\" that takes in four parameters: name, age, location, and hobbies. The function should validate the input and return an object with properties name, age, location, and hobbies.\n\nThe name parameter must be a string containing at least 3 characters ...	9	1
[ { "content": "Create a JavaScript program to validate the username entered by the user, which must meet the following criteria:\n1. The username must be between 8 and 16 characters long.\n2. The username must start with a letter (a-z or A-Z).\n3. The username can only contain letters, numbers, underscores, or h...	[ { "content": "Create a JavaScript program to validate the username entered by the user, which must meet the following criteria:\n1. The username must be between 8 and 16 characters long.\n2. The username must start with a letter (a-z or A-Z).\n3. The username can only contain letters, numbers, underscores, or h...	7	7
[ { "content": "Write a JavaScript program to calculate the sum of the first 10,000 prime numbers that are also palindrome numbers, excluding any prime numbers that contain the digit \"5\". A palindrome number is a number that remains the same when its digits are reversed. Additionally, the program should output ...	[ { "content": "Write a JavaScript program to calculate the sum of the first 10,000 prime numbers that are also palindrome numbers, excluding any prime numbers that contain the digit \"5\". A palindrome number is a number that remains the same when its digits are reversed. Additionally, the program should output ...	8	8
[ { "content": "Write a JavaScript function that toggles the visibility of a div element. The div element should fade in and out smoothly using CSS transitions. Implement the function in such a way that it can handle multiple div elements on the same page, each with their own individual fade-in and fade-out durat...	[ { "content": "Write a JavaScript function that toggles the visibility of a div element. The div element should fade in and out smoothly using CSS transitions. Implement the function in such a way that it can handle multiple div elements on the same page, each with their own individual fade-in and fade-out durat...	7	7
[ { "content": "Correct the syntax errors in the following JavaScript snippet and refactor the code to use a switch statement instead of an if-else statement. Additionally, ensure that the variable \"outpt\" is declared as a constant and initialize it to 0 before the conditionals. The code should also be optimize...	[ { "content": "Correct the syntax errors in the following JavaScript snippet and refactor the code to use a switch statement instead of an if-else statement. Additionally, ensure that the variable \"outpt\" is declared as a constant and initialize it to 0 before the conditionals. The code should also be optimize...	9	3
[ { "content": "Generate a function to convert a given number of milliseconds into a time format string in JavaScript, but the time format should include microseconds as well. The time format should follow the format \"HH:MM:SS:SSS:UUU\", where HH represents hours, MM represents minutes, SS represents seconds, SS...	[ { "content": "Generate a function to convert a given number of milliseconds into a time format string in JavaScript, but the time format should include microseconds as well. The time format should follow the format \"HH:MM:SS:SSS:UUU\", where HH represents hours, MM represents minutes, SS represents seconds, SS...	6	6
[ { "content": "Generate a JavaScript program to check if a number is within a given range, but the lower bound and upper bound values can be dynamic and can only be prime numbers. Additionally, the program should validate if the given range is a consecutive prime number range.", "role": "user" }, { "...	[ { "content": "Generate a JavaScript program to check if a number is within a given range, but the lower bound and upper bound values can be dynamic and can only be prime numbers. Additionally, the program should validate if the given range is a consecutive prime number range.", "role": "user" }, { "...	6	6
[ { "content": "Use jQuery to toggle a div with the class 'hide' only if it is not currently animated and has a data attribute 'toggleable' set to true. Additionally, check if the div has a sibling element with a class of 'visible', and if it does, fade out the sibling element before toggling the div with the cla...	[ { "content": "Use jQuery to toggle a div with the class 'hide' only if it is not currently animated and has a data attribute 'toggleable' set to true. Additionally, check if the div has a sibling element with a class of 'visible', and if it does, fade out the sibling element before toggling the div with the cla...	9	4
[ { "content": "Write a JavaScript program to detect the browser type and version, and also determine if the browser supports certain features like HTML5 and CSS3. Additionally, the program should be able to handle any future browser types that may be released.\n\nProvide a piece of erroneous code that tries to d...	[ { "content": "Write a JavaScript program to detect the browser type and version, and also determine if the browser supports certain features like HTML5 and CSS3. Additionally, the program should be able to handle any future browser types that may be released.\n\nProvide a piece of erroneous code that tries to d...	6	6
[ { "content": "Generate a random array of 1000 integers using JavaScript. Additionally, sort the array in descending order and remove any duplicate values from the array. You should not use any built-in array sorting or removing duplicate methods or functions. The time complexity of your solution should be O(n^2...	[ { "content": "Generate a random array of 1000 integers using JavaScript. Additionally, sort the array in descending order and remove any duplicate values from the array. You should not use any built-in array sorting or removing duplicate methods or functions. The time complexity of your solution should be O(n^2...	9	9
[ { "content": "Write a JavaScript function for validating an email address. The function should not rely on built-in JavaScript methods or regular expressions for email validation. Instead, it should manually check the validity of the email address using string manipulation and logical operations. Additionally, ...	[ { "content": "Write a JavaScript function for validating an email address. The function should not rely on built-in JavaScript methods or regular expressions for email validation. Instead, it should manually check the validity of the email address using string manipulation and logical operations. Additionally, ...	9	9
[ { "content": "Design a data structure using JavaScript to represent a binary tree. Additionally, implement the following methods:\n1. `insert(value)`: Inserts a new node with the given value into the binary tree. Each value in the binary tree should be unique, and attempting to insert a duplicate value should r...	[ { "content": "Design a data structure using JavaScript to represent a binary tree. Additionally, implement the following methods:\n1. `insert(value)`: Inserts a new node with the given value into the binary tree. Each value in the binary tree should be unique, and attempting to insert a duplicate value should r...	7	2