[thelist] JavaScript: Why can't this function see...

Keith Gaughan keith at digital-crew.com
Thu Mar 10 13:10:39 CST 2005

Hershel Robinson wrote:
>>// Ex 3. Create a global variable *without* a declartion.
>>function f()
>>     var x = 2;
>>     alert("In: " + x);
>>alert("Out: " + x);
> This example does NOT work for me on IE 6 nor Firefox 1.0 on Win XP
> actually. I do not think such code should work either. As far as I know (and
> I may well be wrong) you have declared x to be local to function f.

Sorry. The 'var' shouldn't have been there. My bad, but it still
demonstrates the point.

Unlike the likes of PHP, variables are global unless marked otherwise.


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