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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Overflow, integers and strings
Date: Fri, 01 May 2015 22:42:23 +0200
Organization: PointedEars Software (PES)
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Christoph M. Becker wrote:

> Evertjan. wrote:
>> 'this' works:
> 
> Not necessarily:
> 
>     function test() {
> 
>       var a = [1], b = [2];
> 
>       function arraySwap(x,y) {
>         var tempArrName = this[y];
>         this[y] = this[x];
>         this[x] = tempArrName;
>       }
> 
>       console.log(a, b);
>       arraySwap(a, b);
>       console.log(a, b);
>     }

Also, “this” is undefined in arraySwap() if that function is called in 
strict mode.

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