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- /**
- * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
- */
- /* globals document, setTimeout */
- document.getElementById( 'run' ).addEventListener( 'click', () => {
- log( 'Running tests...' );
- setTimeout( async () => {
- await runTest( 'concat', testConcat );
- await runTest( 'spread operator', testSpread );
- await runTest( 'for-loop', testForLoop );
- await runTest( 'ultra-loop', testUltraForLoop );
- log( 'done' );
- } );
- } );
- const output = document.getElementById( 'output' );
- function log( line ) {
- const paragraphElement = document.createElement( 'p' );
- paragraphElement.innerText = line;
- output.appendChild( paragraphElement );
- }
- function runTest( name, callback ) {
- return new Promise( resolve => {
- const start = new Date();
- const repetitions = 10000000;
- const z = Array( repetitions );
- const root = {
- root: 'foo',
- path: [ 0 ]
- };
- const path = [ 0, 2 ];
- for ( let i = 0; i < repetitions; i++ ) {
- const newPath = callback( root, path );
- z[ i ] = [ newPath.length ];
- }
- const end = new Date();
- log( ` > ${ name } took ${ end - start }ms` );
- setTimeout( () => {
- resolve();
- }, 50 );
- } );
- }
- class Position {
- constructor( root, path, stickiness = 'left', pathMergeMethod ) {
- if ( !( path instanceof Array ) || path.length === 0 ) {
- throw new Error( 'model-position-path-incorrect-format' );
- }
- path = pathMergeMethod( root.path, path );
- root = root.root;
- this.root = root;
- this.path = path;
- this.stickiness = stickiness;
- }
- }
- function testConcat( root, path ) {
- return new Position( root, path, 'right', concat );
- }
- function testSpread( root, path ) {
- return new Position( root, path, 'right', spread );
- }
- function testForLoop( root, path ) {
- return new Position( root, path, 'right', forLoop );
- }
- function testUltraForLoop( root, path ) {
- return new Position( root, path, 'right', ultraForLoop );
- }
- function concat( rootPath, path ) {
- return rootPath.concat( path );
- }
- function spread( rootPath, path ) {
- return [ ...rootPath, ...path ];
- }
- function forLoop( rootPath, path ) {
- const newPath = [];
- for ( let i = 0; i < rootPath.length; i++ ) {
- newPath.push( rootPath[ i ] );
- }
- for ( let i = 0; i < path.length; i++ ) {
- newPath.push( path[ i ] );
- }
- return newPath;
- }
- function ultraForLoop( rootPath, path ) {
- const fullLength = rootPath.length + path.length;
- const newPath = new Array( fullLength );
- for ( let i = 0; i < rootPath.length; i++ ) {
- newPath[ i ] = rootPath[ i ];
- }
- for ( let i = 0; i < path.length; i++ ) {
- newPath[ rootPath.length + i ] = path[ i ];
- }
- return newPath;
- }
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