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17 lines
728 B
TypeScript
17 lines
728 B
TypeScript
/**
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* @name promisify
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* @summary Wraps an async callback into a `Promise`
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* @description
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* Wraps the supplied async function `fn` that has a standard JS callback `(error: Error, result: any)` into a `Promise`, passing the supplied parameters. When `error` is set, the Promise is rejected, else the Promise resolves with the `result` value.
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* @example
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* <BR>
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*
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* ```javascript
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* const { promisify } from '@pezkuwi/util';
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*
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* await promisify(null, ((a, cb) => cb(null, a), true); // resolves with `true`
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* await promisify(null, (cb) => cb(new Error('error!'))); // rejects with `error!`
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* ```
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*/
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export declare function promisify<R = any>(self: unknown, fn: (...params: any[]) => any, ...params: any[]): Promise<R>;
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