Editing Array Zero Fill This edit will create a new revision. Your details (optional) Name Email (won’t be displayed; might be used for Gravatar) URL Test case details Title * Published (uncheck if you want to fiddle around before making the page public) Description (in case you feel further explanation is needed)(Markdown syntax is allowed) Are you a spammer? (just answer the question) Preparation code Preparation code HTML (this will be inserted in the <body> of a valid HTML5 document in standards mode) (useful when testing DOM operations or including libraries) <script> function t1(len) { var arr = new Array(len); while (len-- > 0) { arr[len] = 0; } } function t2(len) { var arr = new Array(); while (len-- > 0) { arr[len] = 0; } } function t3(len) { var arr = new Array(len); for (var i = 0; i < len; i++) { arr[i] = 0; } } function t4(len) { var arr = new Array(); for (var i = 0; i < len; i++) { arr[i] = 0; } } function t5(len) { var arr = new Array(len); for (var i = len; i > 0; i--) { arr[i] = 0; } } function t6(len) { var arr = new Array(); for (var i = len; i > 0; i--) { arr[i] = 0; } } function t7(len) { var arr = (new Array(len)).forEach(function(x){ return 0; }); } function zero(){ return 0; } function t8(len) { var arr = (new Array(len)).forEach(zero); } function t9(len) { var arr = new Array(len); for (var i = 0; i < len; ++i) { arr[i] = 0; } } </script> Include JavaScript libraries as follows: <script src="//cdn.ext/library.js"></script> Define setup for all tests (variables, functions, arrays or other objects that will be used in the tests) (runs before each clocked test loop, outside of the timed code region) (e.g. define local test variables, reset global variables, clear canvas, etc.) (see FAQ) Define teardown for all tests (runs after each clocked test loop, outside of the timed code region) (see FAQ) Code snippets to compare Test 1 Title Async (check if this is an asynchronous test) Code t1(1000); Test 2 Title Async (check if this is an asynchronous test) Code t2(1000); Test 3 Title Async (check if this is an asynchronous test) Code t3(1000); Test 4 Title Async (check if this is an asynchronous test) Code t4(1000); Test 5 Title Async (check if this is an asynchronous test) Code t5(1000); Test 6 Title Async (check if this is an asynchronous test) Code t6(1000); Test 7 Title Async (check if this is an asynchronous test) Code t7(1000); Test 8 Title Async (check if this is an asynchronous test) Code t8(1000); Test 9 Title Async (check if this is an asynchronous test) Code t9(1000);