29 lines
904 B
JavaScript
29 lines
904 B
JavaScript
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// This adds a `Promise.withResolvers` polyfill. This will soon be adopted into
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// the spec.
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//
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// TODO: remove this polyfill when it is adopted into the spec.
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//
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// https://tc39.es/proposal-promise-with-resolvers/
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//
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"use strict";
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if (!("withResolvers" in Promise) || typeof Promise.withResolvers !== "function") {
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Promise.withResolvers = ()=>{
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let resolvers;
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// Create the promise and assign the resolvers to the object.
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const promise = new Promise((resolve, reject)=>{
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resolvers = {
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resolve,
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reject
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};
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});
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// We know that resolvers is defined because the Promise constructor runs
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// synchronously.
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return {
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promise,
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resolve: resolvers.resolve,
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reject: resolvers.reject
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};
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};
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}
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//# sourceMappingURL=polyfill-promise-with-resolvers.js.map
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