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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Bubblesort
Date: Tue, 08 Mar 2016 23:34:18 +0100
Organization: PointedEars Software (PES)
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Ben Bacarisse wrote:

> jonas.thornvall@gmail.com writes:
> <snip>
>> Sorry i bothered you your approach do indeed ***work***, apparently it
>> is a string but i can't understand how random makes a string value.
> 
> Math.random() does not make a string but Array.prototype.sort() uses
> string comparison by default.  It's documented.

Imprecise.

String comparison *can* be the default for Array.prototype.sort(); in fact, 
if the /comparefn/ argument is “undefined” (including not specified), the 
sort order is *implementation-dependent*.  Implementations need not agree on 
a default comparator.

So specifying a comparator is *required* in *portable* code *regardless* of 
the type of the elements (which can be of a different type each; but see 
Typed Arrays).

<http://www.ecma-international.org/ecma-262/6.0/index.html#sec-array.prototype.sort>
 
-- 
PointedEars
Zend Certified PHP Engineer 
<http://www.zend.com/en/yellow-pages/ZEND024953> | Twitter: @PointedEars2
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