50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
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/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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const events = require('events');
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const EventEmitter = events.EventEmitter;
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require('../../dist/zone-node');
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const emitters = [];
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const callbacks = [];
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const size = 100000;
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for (let i = 0; i < size; i++) {
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const emitter = new EventEmitter();
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const callback = (function(i) { return function() { console.log(i); }; })(i);
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emitters[i] = emitter;
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callbacks[i] = callback;
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}
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function addRemoveCallback(reuse, useZone) {
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const start = new Date();
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let callback = callbacks[0];
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for (let i = 0; i < size; i++) {
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const emitter = emitters[i];
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if (!reuse) callback = callbacks[i];
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if (useZone)
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emitter.on('msg', callback);
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else
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emitter.__zone_symbol__addListener('msg', callback);
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}
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for (let i = 0; i < size; i++) {
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const emitter = emitters[i];
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if (!reuse) callback = callbacks[i];
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if (useZone)
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emitter.removeListener('msg', callback);
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else
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emitter.__zone_symbol__removeListener('msg', callback);
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}
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const end = new Date();
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console.log(useZone ? 'use zone' : 'native', reuse ? 'reuse' : 'new');
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console.log('Execution time: %dms', end - start);
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}
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addRemoveCallback(false, false);
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addRemoveCallback(false, true);
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addRemoveCallback(true, false);
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addRemoveCallback(true, true);
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