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/ setTimeout setInterval fixer.js
Created
September 24, 2010 12:49
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| // (C) new BSD license | |
| // fix FF bug (delay pass to function) and add support of arguments | |
| (function($G) | |
| { | |
| var fnCache = {}; | |
| var _fixNoArgs = function(_origFn, _arraySlice) | |
| { | |
| return function(/*_fn, delay*/) // .length === 0 | |
| { |
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/ FastSolidArray.js
Created
September 24, 2010 19:15
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| (function($G) | |
| { | |
| var _lengthGetter = function() | |
| { | |
| var b = -1; | |
| var i; | |
| for( ;; ) | |
| { | |
| i = 1; |
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/ _isFunction.js
Created
September 28, 2010 17:46
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| // known issues: | |
| // 1) not cross frame (_fn.toString === Function.prototype.toString) | |
| var _isFunction = function(_fn) | |
| { | |
| return typeof(_fn) == 'function' || | |
| ( | |
| typeof(_fn) != 'string' && | |
| !(_fn instanceof String) && | |
| String(_fn).replace(/^\s+/, '').slice(0, 8) == 'function' && | |
| ( |
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/ keycode.html
Created
October 1, 2010 10:11
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| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| "http://www.w3.org/TR/html4/loose.dtd"> | |
| <html> | |
| <head> | |
| <title>keycode scaner</title> | |
| <meta name="keywords" content="jbasis, keycode ,javascript, tool, tools"> | |
| <meta name="description" content="jbasis keycode scaner"> | |
| <meta content="text/html; charset=UTF-8" http-equiv="content-type"> |
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/ loop structure.js
Created
October 1, 2010 18:14
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| /* | |
| this test shows independence loop structure of performance | |
| internal asm code become same | |
| */ | |
| var m = 1000 | |
| , aL = new Array(m) | |
| ; | |
| aL[aL.length - 1] = 1; |
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| /* | |
| Copyright 2006 Emil A Eklund <[email protected]> & Erik Arvidsson <[email protected]> | |
| Licensed under the Apache License, Version 2.0 (the "License"); | |
| you may not use this file except in compliance with the License. | |
| You may obtain a copy of the License at | |
| http://www.apache.org/licenses/LICENSE-2.0 | |
| Unless required by applicable law or agreed to in writing, software |
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/ is__proto__Supported.js
Created
October 6, 2010 18:17
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| // via me and @kangax | |
| (function() | |
| { | |
| var a = {}; | |
| var someId = new Date(); | |
| var proto = {}; | |
| proto[someId] = someId; | |
| return (a.__proto__ = proto, a[someId] === someId) && |
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/ Array#_shuffleSelf.js
Created
October 7, 2010 13:42
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| Array.prototype._shuffleSelf = function() | |
| { | |
| var i = this.length; | |
| if(i >= 2) | |
| { | |
| var _rand = Math.random; | |
| while(--i) | |
| { |
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/ is Array#map supported.js
Created
October 7, 2010 14:58
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| $jb._isFunction([].map) && | |
| (function(){ | |
| var n = 0 | |
| , isFail = false | |
| , a = [1, 2, 3] | |
| , b = a.map( | |
| function(v, i, vs) | |
| { | |
| n |= 1 << i; | |
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/ hash traversal.js
Created
October 8, 2010 14:13
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| /* | |
| es5 introduces new Object api. Object.keys returns array of own enumerable keys of object. | |
| In es3 we have classic construction "for in hasOwnProperty" for this purposes. | |
| Test try to find what is best - es3 enumeration or es5 | |
| In es5 we have overhead of array making and allocation | |
| In es3 we have overhead of enumeration extra properties from prototype chain and filter it(using hasOwnProperty - extra function call) | |
| update 1 | |
| according brilliant idea of @abozhilov (http://twitter.com/abozhilov/status/26758011447) there is 3rd way which | |
| uses nonstandard __proto__ (presents in v8 and JagerMonkey) |