• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5Array.prototype.getStaggeredFromMiddle = function(i) {
6  if (i >= this.length) {
7    throw("getStaggeredFromMiddle: OOB");
8  }
9  var middle = Math.floor(this.length / 2);
10  var index = middle + (((i % 2) == 0) ? (i / 2) : (((1 - i) / 2) - 1));
11  return this[index];
12}
13
14Array.prototype.contains = function(obj) {
15  var i = this.length;
16  while (i--) {
17    if (this[i] === obj) {
18      return true;
19    }
20  }
21  return false;
22}
23
24Math.alignUp = function(raw, multiple) {
25  return Math.floor((raw + multiple - 1) / multiple) * multiple;
26}
27