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@phoetry
Forked from 140bytes/LICENSE.txt
Created December 2, 2011 12:07
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Cross-browser Array.prototype.unique
Array.prototype.unique =
function()
{
for(var
a = this.slice().sort(), // sort this array
c = a.length, // length of sorted array
b = []; // result array
c--; // loop
a[c] === a[c-1] || // if current item is equal with neighbor, do not
b.push(a[c]) // push it
);
return b; // return the result
}
// 122 bytes
Array.prototype.unique=function(){for(var a=this.slice().sort(),b=[],c=a.length;c--;a[c]===a[c-1]||b.push(a[c]));return b}
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>
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.
{
"name": "Cross-browser Array.prototype.unique",
"keywords": [
"array",
"unique",
"sort"
]
}
<!DOCTYPE html>
<title>Foo</title>
<div>Expected value: <b>undefined</b></div>
<div>Actual value: <b id="ret"></b></div>
<script>
Array.prototype.unique=function(){for(var a=this.slice().sort(),b=[],c=a.length;c--;a[c]===a[c-1]||b.push(a[c]));return b}
var arr = ['f','h','j','s','h','f','j','s','h','f','g','a','h','s','f','i','a','h','f','i','w','a','o','h','f','p','a','f','h','d','s','f','j','h'];
document.getElementById( "ret" ).innerHTML = arr.unique().join(', ');
</script>
@nikola
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nikola commented Dec 5, 2011

Array.filter() is ES5 according to MDN.

@jed
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jed commented Dec 5, 2011

true, but @atk's version is not.

@nikola
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nikola commented Dec 5, 2011

Link?

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