Run results for: Array initialization

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0

Browser: Firefox 52

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Script Preparation code:

var len = 100;

Tests:

Decide length in `new`
var a = new Array(len), i; for (i = 0; i < len; i++) { a[i] = i; } window.a = a;
Decide length with .length
var a = [], i; a.length = len; for (i = 0; i < len; i++) { a[i] = i; } window.a = a;
Push items separately
var a = [], i; for (i = 0; i < len; i++) { a.push(i); } window.a = a;
Assign items separately
var a = [], i; for (i = 0; i < len; i++) { a[i] = i; } window.a = a;