/* * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ function bench(name, func) { var start = Date.now(); for (var iter = 0; iter < 5e6; iter++) { func(); } print((Date.now() - start) + "\t" + name); } bench("[]", function() { []; []; []; }); bench("[1, 2, 3]", function() { [1, 2, 3]; [1, 2, 3]; [1, 2, 3]; }); bench("[1 .. 20]", function() { [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; }); bench("new Array()", function() { new Array(); new Array(); new Array(); }); bench("new Array(1, 2, 3)", function() { new Array(1, 2, 3); new Array(1, 2, 3); new Array(1, 2, 3); }); bench("new Array(10)", function() { new Array(10); new Array(10); new Array(10); }); var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; bench("get", function() { array[0]; array[3]; array[6]; }); bench("set", function() { array[0] = 0; array[3] = 3; array[6] = 6; }); bench("push", function() { var arr = [1, 2, 3]; arr.push(4); arr.push(5); arr.push(6); }); bench("pop", function() { var arr = [1, 2, 3]; arr.pop(); arr.pop(); arr.pop(); }); bench("splice", function() { [1, 2, 3].splice(0, 2, 5, 6, 7); }); var all = function(e) { return true; }; var none = function(e) { return false; }; bench("filter all", function() { array.filter(all); }); bench("filter none", function() { array.filter(none); }); var up = function(a, b) { return a > b ? 1 : -1; }; var down = function(a, b) { return a < b ? 1 : -1; }; bench("sort up", function() { [1, 2, 3, 4].sort(up); }); bench("sort down", function() { [1, 2, 3, 4].sort(down); });