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Array.prototype.reduceRight
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| // 109 bytes, 153 including 'Array.prototype.reduceRight=[].reduceRight||' ... | |
| function ( | |
| a, // callback | |
| b // initialValue and result | |
| ){ | |
| for ( | |
| var c = this, // 'this' shortcut | |
| d = c.length + 1, // iterator | |
| e; // 'undefined' and flag for trailing "holes" in 'c' | |
| d--; | |
| ) | |
| b = d in c ? a(b, c[d], d, e = c) : e || b !== e ? b : c[d -= d - 1 in c]; | |
| return b | |
| } |
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| export function(a,b){for(var c=this,d=c.length+1,e;d--;)b=d in c?a(b,c[d],d,e=c):e||b!==e?b:c[d-=d-1 in c];return b} |
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| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Version 2, December 2004 | |
| Copyright (C) 2011 Sebastien P. https://twitter.com/#!/_sebastienp | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. You just DO WHAT THE FUCK YOU WANT TO. |
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| { | |
| "name": "Array.prototype.reduceRight", | |
| "description": "ES5 Array.prototype.reduceRight polyfill", | |
| "keywords": [ "ES5", "array", "reduceRight", "polyfill" ], | |
| "version": "0.1.0" | |
| } |
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| <!DOCTYPE html> | |
| <title>Foo</title> | |
| <div>Expected value: <b>16</b></div> | |
| <div>Actual value: <b id="ret"></b></div> | |
| <script> | |
| Array.prototype.reduceRight=function(a,b){for(var c=this,d=c.length+1,e;d--;)b=d in c?a(b,c[d],d,e=c):e||b!==e?b:c[d-=d-1 in c];return b} | |
| document.getElementById( "ret" ).innerHTML = [,,,1,2,,3,,,,,,].reduceRight(function(a,b){return a+b},10) | |
| </script> |
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