12 changed files with 156 additions and 14 deletions
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.italic{font-style:italic}.small{font-size:.8em}.lightbox{display:none;position:fixed;z-index:999;width:100%;height:100%;text-align:center;top:0;left:0;background:rgba(0,0,0,0.8)}.lightbox img{max-width:90%;max-height:80%;margin-top:2%}.lightbox:target{outline:0;display:block} |
.italic{font-style:italic}.small{font-size:.8em}.lightbox{display:none;position:fixed;z-index:999;width:100%;height:100%;text-align:center;top:0;left:0;background:rgba(0,0,0,0.8)}.lightbox img{max-width:90%;max-height:90%;margin-top:2%}.lightbox:target{outline:0;display:block} |
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// Production steps of ECMA-262, Edition 6, 22.1.2.1
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if (!Array.from) { |
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Array.from = (function () { |
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var toStr = Object.prototype.toString; |
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var isCallable = function (fn) { |
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return typeof fn === 'function' || toStr.call(fn) === '[object Function]'; |
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}; |
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var toInteger = function (value) { |
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var number = Number(value); |
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if (isNaN(number)) { return 0; } |
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if (number === 0 || !isFinite(number)) { return number; } |
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return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number)); |
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}; |
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var maxSafeInteger = Math.pow(2, 53) - 1; |
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var toLength = function (value) { |
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var len = toInteger(value); |
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return Math.min(Math.max(len, 0), maxSafeInteger); |
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}; |
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// The length property of the from method is 1.
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return function from(arrayLike/*, mapFn, thisArg */) { |
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// 1. Let C be the this value.
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var C = this; |
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// 2. Let items be ToObject(arrayLike).
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var items = Object(arrayLike); |
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// 3. ReturnIfAbrupt(items).
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if (arrayLike == null) { |
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throw new TypeError('Array.from requires an array-like object - not null or undefined'); |
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} |
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// 4. If mapfn is undefined, then let mapping be false.
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var mapFn = arguments.length > 1 ? arguments[1] : void undefined; |
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var T; |
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if (typeof mapFn !== 'undefined') { |
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// 5. else
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// 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
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if (!isCallable(mapFn)) { |
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throw new TypeError('Array.from: when provided, the second argument must be a function'); |
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} |
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// 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
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if (arguments.length > 2) { |
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T = arguments[2]; |
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} |
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} |
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// 10. Let lenValue be Get(items, "length").
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// 11. Let len be ToLength(lenValue).
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var len = toLength(items.length); |
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// 13. If IsConstructor(C) is true, then
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// 13. a. Let A be the result of calling the [[Construct]] internal method
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// of C with an argument list containing the single item len.
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// 14. a. Else, Let A be ArrayCreate(len).
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var A = isCallable(C) ? Object(new C(len)) : new Array(len); |
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// 16. Let k be 0.
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var k = 0; |
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// 17. Repeat, while k < len… (also steps a - h)
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var kValue; |
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while (k < len) { |
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kValue = items[k]; |
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if (mapFn) { |
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A[k] = typeof T === 'undefined' ? mapFn(kValue, k) : mapFn.call(T, kValue, k); |
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} else { |
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A[k] = kValue; |
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} |
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k += 1; |
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} |
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// 18. Let putStatus be Put(A, "length", len, true).
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A.length = len; |
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// 20. Return A.
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return A; |
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}; |
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}()); |
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} |
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Array.from||(Array.from=function(){var r=Object.prototype.toString,t=function(t){return"function"==typeof t||"[object Function]"===r.call(t)},n=Math.pow(2,53)-1,e=function(r){var t,e=(t=Number(r),isNaN(t)?0:0!==t&&isFinite(t)?(t>0?1:-1)*Math.floor(Math.abs(t)):t);return Math.min(Math.max(e,0),n)};return function(r){var n=Object(r);if(null==r)throw new TypeError("Array.from requires an array-like object - not null or undefined");var o,a=arguments.length>1?arguments[1]:void 0;if(void 0!==a){if(!t(a))throw new TypeError("Array.from: when provided, the second argument must be a function");arguments.length>2&&(o=arguments[2])}for(var i,u=e(n.length),f=t(this)?Object(new this(u)):new Array(u),c=0;c<u;)i=n[c],f[c]=a?void 0===o?a(i,c):a.call(o,i,c):i,c+=1;return f.length=u,f}}()); |
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