75 lines
2.3 KiB
TypeScript
75 lines
2.3 KiB
TypeScript
/**
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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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import {defineComponent} from '../../src/render3/index';
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import {container, containerRefreshEnd, containerRefreshStart, elementEnd, elementStart, embeddedViewEnd, embeddedViewStart, text} from '../../src/render3/instructions';
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import {document, renderComponent} from './render_util';
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describe('iv perf test', () => {
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const count = 100000;
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const noOfIterations = 10;
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describe('render', () => {
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for (let iteration = 0; iteration < noOfIterations; iteration++) {
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it(`${iteration}. create ${count} divs in DOM`, () => {
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const start = new Date().getTime();
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const container = document.createElement('div');
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for (let i = 0; i < count; i++) {
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const div = document.createElement('div');
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div.appendChild(document.createTextNode('-'));
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container.appendChild(div);
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}
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const end = new Date().getTime();
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log(`${count} DIVs in DOM`, (end - start) / count);
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});
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it(`${iteration}. create ${count} divs in Render3`, () => {
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class Component {
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static ngComponentDef = defineComponent({
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type: Component,
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selector: [[['div'], null]],
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template: function Template(ctx: any, cm: any) {
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if (cm) {
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container(0);
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}
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containerRefreshStart(0);
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{
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for (let i = 0; i < count; i++) {
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let cm0 = embeddedViewStart(0);
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{
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if (cm0) {
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elementStart(0, 'div');
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text(1, '-');
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elementEnd();
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}
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}
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embeddedViewEnd();
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}
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}
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containerRefreshEnd();
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},
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factory: () => new Component
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});
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}
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const start = new Date().getTime();
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renderComponent(Component);
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const end = new Date().getTime();
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log(`${count} DIVs in Render3`, (end - start) / count);
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});
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}
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});
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});
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function log(text: string, duration: number) {
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// tslint:disable-next-line:no-console
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console.log(text, duration * 1000, 'ns');
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}
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