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42 lines (36 loc) 路 1.03 KB
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/**
* @license
* Copyright Google LLC 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.dev/license
*/
import {ComponentRef} from '@angular/core';
import {exportNgVar} from '../../dom/util';
import {AngularProfiler} from './common_tools';
const PROFILER_GLOBAL_NAME = 'profiler';
/**
* Enabled Angular debug tools that are accessible via your browser's
* developer console.
*
* Usage:
*
* 1. Open developer console (e.g. in Chrome Ctrl + Shift + j)
* 1. Type `ng.` (usually the console will show auto-complete suggestion)
* 1. Try the change detection profiler `ng.profiler.timeChangeDetection()`
* then hit Enter.
*
* @publicApi
*/
export function enableDebugTools<T>(ref: ComponentRef<T>): ComponentRef<T> {
exportNgVar(PROFILER_GLOBAL_NAME, new AngularProfiler(ref));
return ref;
}
/**
* Disables Angular tools.
*
* @publicApi
*/
export function disableDebugTools(): void {
exportNgVar(PROFILER_GLOBAL_NAME, null);
}