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34 lines
1.2 KiB
Text
34 lines
1.2 KiB
Text
interface DebounceOptions {
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/**
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Call the `fn` on the [leading edge of the timeout](https://css-tricks.com/debouncing-throttling-explained-examples/#article-header-id-1).
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Meaning immediately, instead of waiting for `wait` milliseconds.
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@default false
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*/
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readonly leading?: boolean;
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/**
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Call the `fn` on trailing edge with last used arguments. Result of call is from previous call.
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@default false
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*/
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readonly trailing?: boolean;
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}
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/**
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Debounce functions
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@param fn - Promise-returning/async function to debounce.
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@param wait - Milliseconds to wait before calling `fn`. Default value is 25ms
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@returns A function that delays calling `fn` until after `wait` milliseconds have elapsed since the last time it was called.
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@example
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```
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import { debounce } from 'perfect-debounce';
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const expensiveCall = async input => input;
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const debouncedFn = debounce(expensiveCall, 200);
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for (const number of [1, 2, 3]) {
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console.log(await debouncedFn(number));
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}
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//=> 3
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//=> 3
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//=> 3
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```
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*/
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declare function debounce<ArgumentsT extends unknown[], ReturnT>(fn: (...args: ArgumentsT) => PromiseLike<ReturnT> | ReturnT, wait?: number, options?: DebounceOptions): (...args: ArgumentsT) => Promise<ReturnT>;
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export { DebounceOptions, debounce };
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