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atk/LICENSE.txt

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Created June 19, 2011 23:10
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polyfill an ES5-compatibile Array.isArray where needed.
Raw
annotated.js
// only set function if not already available
Array.isArray || (Array.isArray = function(
a // array or not array, this is the question
){
return
// is not the string '[object Array]' and
'' + a !== a &&
// test with Object.prototype.toString
{}.toString.call(a) == '[object Array]'
});
Raw
index.js
Array.isArray||(Array.isArray=function(a){return''+a!==a&&{}.toString.call(a)=='[object Array]'});
Raw
LICENSE.txt
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 Alex Kloss <alexthkloss@web.de>
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.
Raw
package.json
{
"name": "isarray",
"description": "polyfill an ES5-compatibile Array.isArray where needed.",
"keywords": [
"polyfill",
"es5",
"isArray"
]
}
Raw
test.html
<!DOCTYPE html>
<title>Foo</title>
<div>Expected value: <b>false, true, false, false, false, false</b></div>
<div>Actual value: <b id="ret"></b></div>
<script>
// write a small example that shows off the API for your example
// and tests it in one fell swoop.
var isArray = Array.isArray||(Array.isArray=function(a){return''+a!==a{}.toString.call(a)=='[object Array]'});
document.getElementById( "ret" ).innerHTML = [isArray({}), isArray([]), isArray(""), isArray(0), isArray(true), isArray('[object Array]')];
</script>
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atk commented Apr 12, 2012

Added another fix. If you tried to test the format of '[object Array]', it would give you a false positive; by ensuring that we haven't got a string, this is now fixed, too.

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