was.js – Blame information for rev 51
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2 | office | 1 | /*************************************************************************/ |
2 | /* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */ |
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3 | /*************************************************************************/ |
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29 | office | 4 | function wasProduct(a, b) { |
5 | var m = Math.max(a.length, b.length); |
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25 | office | 6 | var o = {}; |
7 | for(var i = 0; i < m; ++i) { |
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8 | o[a[i]] = b[i]; |
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9 | } |
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10 | return o; |
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11 | } |
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2 | office | 12 | if (!Array.prototype.product) { |
29 | office | 13 | Array.prototype.product = function(b) { |
14 | return wasProduct(this, b); |
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15 | }; |
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2 | office | 16 | } |
25 | office | 17 | // jQuery |
18 | if(typeof jQuery === 'function') { |
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19 | $.extend({ |
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20 | product: wasProduct |
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21 | }); |
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22 | } |
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2 | office | 23 | |
24 | /*************************************************************************/ |
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25 | /* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */ |
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26 | /*************************************************************************/ |
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29 | office | 27 | function wasStride(a, s) { |
28 | return a.filter(function(e, i) { |
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25 | office | 29 | return i % s === 0; |
30 | }); |
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31 | } |
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2 | office | 32 | if (!Array.prototype.stride) { |
29 | office | 33 | Array.prototype.stride = function(s) { |
34 | return wasStride(this, s); |
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35 | }; |
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2 | office | 36 | } |
25 | office | 37 | // jQuery |
38 | if(typeof jQuery === 'function') { |
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39 | $.extend({ |
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40 | stride: wasStride |
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41 | }); |
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42 | } |
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2 | office | 43 | |
25 | office | 44 | // Vanilla JavaScript |
29 | office | 45 | function wasChunk(a, n) { |
51 | office | 46 | return Array.from(new Array(Math.ceil(a.length/n)), (_,i)=>a.slice(i*n,i*n+n)); |
25 | office | 47 | } |
2 | office | 48 | if (!Array.prototype.chunk) { |
29 | office | 49 | Array.prototype.chunk = function(a, n) { |
50 | return wasChunk(this, n); |
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51 | }; |
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2 | office | 52 | } |
25 | office | 53 | // jQuery |
54 | if(typeof jQuery === 'function') { |
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55 | $.extend({ |
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56 | chunk: wasChunk |
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57 | }); |
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58 | } |
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5 | office | 59 | |
60 | /*************************************************************************/ |
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61 | /* Copyright (C) 2017 Wizardry and Steamworks - License: GNU GPLv3 */ |
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62 | /*************************************************************************/ |
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63 | /*stackoverflow.com/questions/7837456/how-to-compare-arrays-in-javascript*/ |
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64 | /*************************************************************************/ |
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25 | office | 65 | // Vanilla JavaScript |
29 | office | 66 | function wasEquals(a, b) { |
25 | office | 67 | // if the other array is a falsy value, return |
29 | office | 68 | if (!b) { |
25 | office | 69 | return false; |
70 | } |
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5 | office | 71 | |
25 | office | 72 | // compare lengths - can save a lot of time |
29 | office | 73 | if (a.length !== b.length) { |
25 | office | 74 | return false; |
75 | } |
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5 | office | 76 | |
29 | office | 77 | for (var i = 0, l = a.length; i < l; i++) { |
25 | office | 78 | // Check if we have nested arrays |
29 | office | 79 | if (a[i] instanceof Array && b[i] instanceof Array) { |
25 | office | 80 | // recurse into the nested arrays |
29 | office | 81 | if (!a[i].equals(b[i])) { |
5 | office | 82 | return false; |
83 | } |
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29 | office | 84 | } else if (a[i] !== b[i]) { |
25 | office | 85 | // Warning - two different object instances will never be equal: {x:20} != {x:20} |
86 | return false; |
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5 | office | 87 | } |
25 | office | 88 | } |
89 | return true; |
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5 | office | 90 | } |
25 | office | 91 | if (!Array.prototype.equals) { |
92 | // attach the .equals method to Array's prototype to call it on any array |
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29 | office | 93 | Array.prototype.equals = function(a, b) { |
94 | return wasEquals(this, b); |
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95 | }; |
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25 | office | 96 | } |
97 | // jQuery |
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98 | if(typeof jQuery === 'function') { |
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99 | $.extend({ |
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100 | equals: wasEquals |
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101 | }); |
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102 | } |
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5 | office | 103 | |
25 | office | 104 | /*************************************************************************/ |
105 | /* Node.JS package export. */ |
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106 | /*************************************************************************/ |
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41 | office | 107 | if(typeof module !== 'undefined' && typeof module.exports !== 'undefined') { |
34 | office | 108 | module.exports.collections = { |
109 | product: wasProduct, |
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110 | stride: wasStride, |
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111 | chunk: wasChunk, |
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112 | equals: wasEquals |
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113 | }; |
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114 | } |