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Jeffrey PosnickandGitHub
1dc32ece6f
* Updates various devDependencies * Swithcing back to Object * Switch node back to 8 * Revert a test changee
35 lines
733 B
JavaScript
35 lines
733 B
JavaScript
/*
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Copyright 2019 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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class AsyncDebounce {
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constructor(fn) {
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this._fn = fn;
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this._needsRecall = false;
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}
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call() {
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if (!this._promise) {
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/* eslint-disable no-async-promise-executor */
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this._promise = new Promise(async (resolve) => {
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do {
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this._needsRecall = false;
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await this._fn.call();
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} while (this._needsRecall !== false);
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this._promise = null;
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resolve();
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});
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} else {
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this._needsRecall = true;
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}
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return this._promise;
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}
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}
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module.exports = {AsyncDebounce};
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