| 1 | import delay from './delay.js';
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| 2 |
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| 3 | /**
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| 4 | * Delays the resolving of a new Promise for a given amount of time. Provides the same functionality as defer and delay, but with promises. Also serves as a wrapper for a Promise if a callback is provided.
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| 5 | *
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| 6 | * @example
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| 7 | * ``` javascript
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| 8 | * import { wait } from 'async-agent';
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| 9 | *
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| 10 | * wait(1000)
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| 11 | * .then(() => {
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| 12 | * console.log('2');
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| 13 | * });
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| 14 | *
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| 15 | * console.log('1');
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| 16 | *
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| 17 | * // => 1
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| 18 | * // (after 1000ms) => 2
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| 19 | * ```
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| 20 | *
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| 21 | * @function wait
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| 22 | *
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| 23 | * @arg {Number|function} [duration=0]
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| 24 | *
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| 25 | * @returns {Promise}
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| 26 | */
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| 27 | export default (duration = 0) => new Promise((resolve, reject) => {
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| 28 | if (typeof duration === 'function') {
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| 29 | duration(resolve, reject);
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| 30 | }
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| 31 | else if (duration === 0) {
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| 32 | resolve();
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| 33 | }
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| 34 | else {
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| 35 | delay(resolve, duration);
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| 36 | }
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| 37 | });
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