angular/packages/core/src/util/microtask.ts
2019-05-16 12:08:49 -07:00

21 lines
574 B
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
const promise: Promise<any> = (() => Promise.resolve(0))();
declare const Zone: any;
export function scheduleMicroTask(fn: Function) {
if (typeof Zone === 'undefined') {
// use promise to schedule microTask instead of use Zone
promise.then(() => { fn && fn.apply(null, null); });
} else {
Zone.current.scheduleMicroTask('scheduleMicrotask', fn);
}
}