id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
React_hook_adding_interactivity/adding_interactivity_3_6.txt | o switch the page background between white
and black. However, nothing happens when you click it. Fix the problem. (Don’t
worry about the logic inside ` handleClick ` —that part is fine.)
App.js
App.js
Reset [ Fork
](https://codesandbox.io/api/v1/sandboxes/define?undefined&environment=create-
react-app "Open in Cod... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_138_0.txt | Return whether the cards can be rearranged
#### Hot Network Questions | |
React_hook_adding_interactivity/eslint3_40_0.txt | Edit this page
Feedback Edit this page | |
React_hook_adding_interactivity/React_hook_0_7.txt | <p><i>{bio ?? 'Loading...'}</i></p>
</>
);
}
Show more
You can also rewrite using the [ ` async ` / ` await `
](https://developer.mozilla.org/en-
US/docs/Web/JavaScript/Reference/Statements/async_function) syntax, but you
still need to provide a cleanup function:
App.js
App.js
... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_1_0.txt | Stack Exchange network consists of 183 Q&A communities including Stack
Overflow , the largest, most trusted online community for developers to
learn, share their knowledge, and build their careers.
Visit Stack Exchange | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_76_0.txt |
void Deck::makeDeck()
{
constexpr auto all_ranks = std::array{
card_t::rank_t::ace,
card_t::rank_t::two,
// and so on...
};
constexpr auto all_suits = std::array{
card_t::suit_t::hearts,
card_t::suit_t::diamonds,
... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_19_0.txt | The deck class is there because I want to create additional decks such as
pinnacle or skip-bo.
I that about using an Enum class for card objects or a switch statement for
creating cards. | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_4_0.txt | * Meta Stack Overflow
### your communities | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_15_0.txt | # Deck of Cards written in C++
Ask Question | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_55_0.txt | If you want to allow replaying, then you just need to wrap all that in a loop:
do
{
auto game = game_t{};
while (game.running())
{
game.get_input();
game.update();
game.render(std::cout);
}
std::cout << "\n\n=======... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_69_0.txt | Other than that, I already showed how you can optimize the card class down to
something only 2 bytes large, that will be blazingly fast.
Deck() {}
| |
React_hook_adding_interactivity/adding_interactivity_2_3.txt | to change some or all items of the array, you can use ` map() ` to
create a **new** array. The function you will pass to ` map ` can decide what
to do with each item, based on its data or its index (or both).
In this example, an array holds coordinates of two circles and a square. When
you press the button, it moves o... | |
React_hook_adding_interactivity/adding_interactivity_3_2.txt |
When you write code inline, the same pitfall presents itself in a different
way:
passing a function (correct) | calling a function (incorrect)
---|---
` <button onClick={() => alert('...')}> ` | ` <button onClick={alert('...')}> `
Passing inline code like this won’t fire on click—it fires every time the
... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_44_0.txt | – Aric TenEyck
Nov 6, 2012 at 18:45 | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_21_1.txt |
if(choice=='y') {
//deal21();
deck.makeDeck();
printHand(deck.cards);
} else {
cout<<"goodbye";
exit(0);
}
}
void Dealer::getCard(vector<Card> &hand) {
int pick=randomizeDeck(deck.cards);
hand.push_back(deck.card... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_64_0.txt | You don’t need to explicitly spell out these functions. Classes get default
constructors and destructors by default. Actually writing out these functions
causes three problems:
1. It confuses developers. | |
React_hook_adding_interactivity/eslint3_19_0.txt | * How to create a Module Federation Host Application
* How to create a Module Federation Remote Application
* How to Federate a Module
* ##### Enforce Module Boundaries
* Ban Dependencies with Certain Tags
* Tag in Multiple Dimensions
* Ban External Imports
* Tags ... | |
React_hook_adding_interactivity/React_hook_3_9.txt | ed instead
You can’t put a function into state like this:
const [fn, setFn] = useState(someFunction);
function handleClick() {
setFn(someOtherFunction);
}
Because you’re passing a function, React assumes that ` someFunction ` is an
init... | |
React_hook_adding_interactivity/React_hook_2_5.txt | ton _inside_ the ` Footer ` receives a different context value (
` "light" ` ) than the buttons outside ( ` "dark" ` ).
App.js
App.js
Reset [ Fork
](https://codesandbox.io/api/v1/sandboxes/define?undefined&environment=create-
react-app "Open in CodeSandbox")
import { createContext, useContext } from ... | |
React_hook_adding_interactivity/adding_interactivity_0_0.txt | Stream React Conf on May 15-16.
[ Learn more. ](https://conf.react.dev/)
[ React ](/)
Search ` ⌘ ` ` Ctrl ` ` K `
[ Learn ](/learn)
[ Reference ](/reference/react)
[ Community ](/community)
[ Blog ](/blog)
[ ](https://github.com/facebook/react/releases)
### GET STARTED
* [ Quick Start ](/learn "Quick St... | |
React_hook_adding_interactivity/eslint3_4_0.txt | Documentation Blog CI Pricing
Resources | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_14_0.txt | ##### Collectives™ on Stack Overflow
Find centralized, trusted content and collaborate around the technologies you
use most. | |
React_hook_adding_interactivity/eslint3_0_0.txt | Skip to content
Open sidebar Nx | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_35_0.txt | Highest score (default) Trending (recent votes count more) Date modified
(newest first) Date created (oldest first)
4 | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_88_0.txt |
std::ranges::for_each(hand, [](auto&& card) {
std::cout << card.name << " of " << card.suit << '\n';
});
And even better would be if cards knew how to print themselves. Again, get the
types right, and everything else just works. If cards did know how to print
themselves, then... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_20_0.txt | Modified 11 years, 6 months ago
Viewed 14k times | |
React_hook_adding_interactivity/React_hook_1_7.txt | > {
const options = createOptions();
const connection = createConnection();
connection.connect();
// ...
This creates a problem. [ Every reactive value must be declared as a
dependency of your Effect. ](/learn/lifecycle-of-reactive-effects... | |
React_hook_adding_interactivity/React_hook_0_14.txt | your component’s visual output? If you need to keep track
of some data that isn’t used by rendering, a [ ref
](/reference/react/useRef#referencing-a-value-with-a-ref) (which doesn’t
trigger re-renders) might be more appropriate. Verify your Effect doesn’t
update the state (and trigger re-renders) more than needed.
Fin... | |
React_hook_adding_interactivity/React_hook_0_3.txt | andle-the-effect-firing-twice-in-development)
* If some of your dependencies are objects or functions defined inside the component, there is a risk that they will **cause the Effect to re-run more often than needed.** To fix this, remove unnecessary object and function dependencies. You can also extract state u... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_82_0.txt |
} else {
cout<<"goodbye";
exit(0);
}
Never, ever use ` std::exit() ` in C++. It’s a C function; it doesn’t work
properly in C++. | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_128_0.txt | #### Related
4 | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_58_0.txt | ## Don’t use ` std::endl `
If you just want a newline, use ` '\n' ` . ` std::endl ` doesn’t just print a
newline, it flushes the stream, which can be expensive. | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_10_0.txt | 8. Discussions
9. Collectives | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_53_0.txt | Follow
answered Nov 6, 2012 at 18:30 | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_58_0.txt | answered Nov 6, 2012 at 18:30
Alex Reynolds Alex Reynolds | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_0_0.txt | Skip to main content
Stack Overflow | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_77_0.txt | That’s how clean and simple C++ code gets when you make proper types. Get the
types right, and everything else just magically falls into place.
Dealer() {}
| |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_82_0.txt | C++ selecting a number of random items without repeating
0 | |
React_hook_adding_interactivity/adding_interactivity_2_1.txt | [ You Might Not Need an Effect ](/learn/you-might-not-need-an-effect "You Might Not Need an Effect")
* [ Lifecycle of Reactive Effects ](/learn/lifecycle-of-reactive-effects "Lifecycle of Reactive Effects")
* [ Separating Events from Effects ](/learn/separating-events-from-effects "Separating Events from Eff... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_8_0.txt | 2. Questions
3. Tags | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_41_0.txt | * ` Card ` : 80
* ` card_t ` : 2
Using GCC: | |
React_hook_adding_interactivity/generate-a-random-playing-cards-deck-securely-asynchronously-and-deterministically-327_20_0.txt | Tags: Algorithms Playing Cards Programming Tutorial
Neve | Powered by WordPress | |
React_hook_adding_interactivity/eslint3_41_0.txt | ## Footer
Nx | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_60_0.txt | ## Don’t shuffle the deck every time a card is drawn
Shuffling over and over doesn’t actually improve randomness, and it costs. | |
React_hook_adding_interactivity/React_hook_0_9.txt | ter like this:
useEffect(() => {
// ...
// 🔴 Avoid suppressing the linter like this:
// eslint-ignore-next-line react-hooks/exhaustive-deps
}, []);
**When dependencies don’t match the code, there is a high risk of introducing
bugs.**... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_51_0.txt | You will need to simulate a deck of cards so that when a card is selected, it
is removed from a list of cards.
So what happens is that you begin with a full deck and then as you randomly
pick a card from the list, you will remove it from the list. | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_24_0.txt | Improve this question
Follow | |
React_hook_adding_interactivity/adding_interactivity_0_2.txt | items.
This is how they work together in ` handleClick ` :
function handleClick() {
setIndex(index + 1);
}
Now clicking the “Next” button switches the current sculpture:
App.js data.js
App.js
Reset [ Fork
](https://codesandbox.io/api/v1/sandboxes/define?undefined... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_91_0.txt | First, ` int ` is the wrong type. If you are indexing a ` vector ` , the
correct type to use is the ` vector ` ’s ` size_type ` . ` vector ` ’s `
size_type ` is going to be unsigned (which, yes, is not good, but it was a
decision made long ago, before people realized the problems it would cause),
and may also be much b... | |
React_hook_adding_interactivity/eslint3_42_0.txt | Smart Monorepos · Fast CI
Discord GitHub X Youtube Newsletter | |
React_hook_adding_interactivity/React_hook_0_0.txt | Stream React Conf on May 15-16.
[ Learn more. ](https://conf.react.dev/)
[ React ](/)
Search ` ⌘ ` ` Ctrl ` ` K `
[ Learn ](/learn)
[ Reference ](/reference/react)
[ Community ](/community)
[ Blog ](/blog)
[ ](https://github.com/facebook/react/releases)
### react@18.2.0
* [ Overview ](/reference/react "... | |
React_hook_adding_interactivity/generate-a-random-playing-cards-deck-securely-asynchronously-and-deterministically-327_9_0.txt | For one of my personal projects I had to generate a deck of 52 cards in a
random order, with the following constraints:
* Each card should be returned by the API only when our user wants to reveal the card, not all the deck at once before, such that you cannot look into the network response to see the next cards,
... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_41_0.txt | answered Nov 6, 2012 at 18:37
WhozCraig WhozCraig | |
React_hook_adding_interactivity/adding_interactivity_2_2.txt | );
}}>Add</button>
<ul>
{artists.map(artist => (
<li key={artist.id}>{artist.name}</li>
))}
</ul>
</>
);
}
Show more
Instead, create a _new_ array which contains the existing items _and_ a new
item at the end. There are mu... | |
React_hook_adding_interactivity/React_hook_4_3.txt | the nearest [ ` Suspense ` fallback ](/reference/react/Suspense) , replacing already-rendered content on screen with a loading spinner, which typically makes a poor UX.
For example, the following are discouraged:
const LazyProductDetailPage = lazy(() => import('./ProductDetailPage.js'));
... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_27_0.txt | user1745511 user1745511
67 1 1 gold badge 5 5 silver badges 7 7 bronze badges | |
React_hook_adding_interactivity/eslint3_45_0.txt | ### Help
* Documentation
* Community
* StackOverflow
* Report Issues
* Status Page | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_3_0.txt | * Stack Overflow
help chat | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_38_0.txt |
constexpr auto to_value(rank_t r) noexcept -> int
{
switch (r)
{
case rank_t::jack:
[[fallthrough]];
case rank_t::queen:
[[fallthrough]];
case rank_t::king:
return 10;
default:
return static_cast<int>(r);
... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_62_0.txt | But avoid …
* Asking for help, clarification, or responding to other answers.
* Making statements based on opinion; back them up with references or personal experience. | |
React_hook_adding_interactivity/generate-a-random-playing-cards-deck-securely-asynchronously-and-deterministically-327_7_0.txt | * Tutorials
Home » Coding » Generate a random playing cards deck in any programming
language | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_9_0.txt | 4. 5. Users
6. Companies | |
React_hook_adding_interactivity/eslint3_25_0.txt | ##### Troubleshooting
* Resolve Circular Dependencies
* Troubleshooting Nx Install Issues
* Troubleshoot Cache Misses
* Unknown Local Cache Error
* Profiling Build Performance | |
React_hook_adding_interactivity/generate-a-random-playing-cards-deck-securely-asynchronously-and-deterministically-327_17_0.txt | What I mean is that at the moment, the frontend generates and is aware of the
seed used to generate the deck, which means that a user could get this seed
and simulate the system on their own computer, to have the result of the deck
without dealing the cards using your API.
There are multiple ways to solve this issue, ... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_61_0.txt | Thanks for contributing an answer to Stack Overflow!
* Please be sure to answer the question . Provide details and share your research! | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_45_0.txt | * 2
I particularly like this answer because it is more simulation-oriented: you
never lose information, so you could replay the draw of cards forward and, if
you wish, backwards. | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_23_0.txt | * c++
Share | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_114_0.txt | Draft saved
Draft discarded | |
React_hook_adding_interactivity/React_hook_1_3.txt | ize rendering performance, you will sometimes need to cache the
functions that you pass to child components. Let’s first look at the syntax
for how to do this, and then see in which cases it’s useful.
To cache a function between re-renders of your component, wrap its definition
into the ` useCallback ` Hook:
... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_18_0.txt | Learn more about Labs
# Deck of Cards: How do I make it so I randomly draw a card only once? | |
React_hook_adding_interactivity/adding_interactivity_1_1.txt | [ You Might Not Need an Effect ](/learn/you-might-not-need-an-effect "You Might Not Need an Effect")
* [ Lifecycle of Reactive Effects ](/learn/lifecycle-of-reactive-effects "Lifecycle of Reactive Effects")
* [ Separating Events from Effects ](/learn/separating-events-from-effects "Separating Events from Eff... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_47_0.txt | * @AricTenEyck: In particular in C++ ` random_shuffle `
– Matthieu M. | |
React_hook_adding_interactivity/adding_interactivity_2_4.txt | t [ Fork
](https://codesandbox.io/api/v1/sandboxes/define?undefined&environment=create-
react-app "Open in CodeSandbox")
import { useState } from 'react';
let nextId = 3;
const initialArtists = [
{ id: 0, name: 'Marta Colvin Andrade' },
{ id: 1, name: 'Lamidi Olonade Fakeye'},
... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_47_0.txt | However, what the deck class really needs is some member functions, because
if you’re just going to expose the ` cards ` data member, you might as well
not have a deck class at all: just use a vector of cards. Designing a good
interface is an art and a science, but a decent deck class might look
something like this:
... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_144_0.txt | * Stack Overflow
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React_hook_adding_interactivity/deck-of-cards-written-in-c8_113_0.txt | Use MathJax to format equations. MathJax reference .
To learn more, see our tips on writing great answers . | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_97_0.txt | 75.2k 14 14 gold badges 94 94 silver badges 262 262 bronze badges
answered Jan 16, 2021 at 5:15 | |
React_hook_adding_interactivity/eslint3_10_0.txt | * Mental Model
* How Caching Works
* What is a Task Pipeline
* What Are Nx Plugins
* Inferred Tasks
* Types of Configuration
* Executors and Configurations
* Integrated Repos vs. Package-Based Repos vs. Standalone Apps
* ##### Module Federation
* Module Federation an... | |
React_hook_adding_interactivity/React_hook_4_0.txt | Stream React Conf on May 15-16.
[ Learn more. ](https://conf.react.dev/)
[ React ](/)
Search ` ⌘ ` ` Ctrl ` ` K `
[ Learn ](/learn)
[ Reference ](/reference/react)
[ Community ](/community)
[ Blog ](/blog)
[ ](https://github.com/facebook/react/releases)
### react@18.2.0
* [ Overview ](/reference/react "... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_32_0.txt | This is enormously wasteful. A card really only has two properties: rank and
suit. If you know the rank, you know the value and the name, so duplicating
that data in the class is just wasting space.
I don’t even see how your code even compiles, because ` rank ` is a string,
but in ` Deck::makeDeck() ` you try to sho... | |
React_hook_adding_interactivity/React_hook_3_3.txt | See an example below.
#### Returns
` set ` functions do not have a return value.
#### Caveats
* The ` set ` function **only updates the state variable for the _next_ render ** . If you read the state variable after calling the ` set ` function, you will still get the old value that was on the screen before y... | |
React_hook_adding_interactivity/eslint3_15_0.txt | * Migrating from Angular CLI
* Migrating From Multiple Angular CLI Repos
* Use Environment Variables in Angular
* Using Tailwind CSS with Angular projects
* Setup Module Federation with SSR for Angular
* Advanced Micro Frontends with Angular using Dynamic Federation
*... | |
React_hook_adding_interactivity/eslint3_16_0.txt | * Set up Storybook for React Projects
* Set up Storybook for Angular Projects
* Set up Storybook for Vue Projects
* Configuring Storybook on Nx
* One main Storybook instance for all projects
* One Storybook instance per scope
* One main Storybook instance using Storybook ... | |
React_hook_adding_interactivity/React_hook_0_2.txt | that lets you [ synchronize a component with an
external system. ](/learn/synchronizing-with-effects)
useEffect(setup, dependencies?)
* Reference
* ` useEffect(setup, dependencies?) `
* Usage
* Connecting to an external system
* Wrapping Effects in custom Hooks
* Controlling a no... | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_42_0.txt | * ` Card ` : 104
* ` card_t ` : 2
You see? By using enumerations, the card class is ~40–50 times smaller.
Assuming a cache line size of 64 b, you can actually fit an entire deck of `
card_t ` in just two cache lines, whereas not even a single ` Card ` would
fit . (And if you were really clever, you could g... | |
React_hook_adding_interactivity/adding_interactivity_3_0.txt | Stream React Conf on May 15-16.
[ Learn more. ](https://conf.react.dev/)
[ React ](/)
Search ` ⌘ ` ` Ctrl ` ` K `
[ Learn ](/learn)
[ Reference ](/reference/react)
[ Community ](/community)
[ Blog ](/blog)
[ ](https://github.com/facebook/react/releases)
### GET STARTED
* [ Quick Start ](/learn "Quick St... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_32_0.txt | * Possibly related: stackoverflow.com/questions/4075439/shuffling-a-deck-of-cards
– Robᵩ | |
React_hook_adding_interactivity/adding_interactivity_3_5.txt |
function Button({ onClick, children }) {
return (
<button onClick={e => {
e.stopPropagation();
onClick();
}}>
{children}
</button>
);
... | |
React_hook_adding_interactivity/adding_interactivity_1_0.txt | Stream React Conf on May 15-16.
[ Learn more. ](https://conf.react.dev/)
[ React ](/)
Search ` ⌘ ` ` Ctrl ` ` K `
[ Learn ](/learn)
[ Reference ](/reference/react)
[ Community ](/community)
[ Blog ](/blog)
[ ](https://github.com/facebook/react/releases)
### GET STARTED
* [ Quick Start ](/learn "Quick St... | |
React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_84_0.txt | Using rand() to shuffle cards but no shuffling happens
1 | |
React_hook_adding_interactivity/deck-of-cards-written-in-c8_119_0.txt | Required, but never shown
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React_hook_adding_interactivity/deck-of-cards-how-do-i-make-it-so-i-randomly-draw-a-card-only-once2_48_0.txt | Nov 6, 2012 at 18:50
* @Matt It can be exploited even beyond that, esp if you are limited on the back side of the draw. Example: You have a game that always draws five cards. once you reach 50, there are not five left. At that point you can reshuffle just [0..49]. If your ` nextCard ` increment is actually `nextCa... | |
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