your proposal in IE
var s = "this is a string with function word";
isFunction(s) // true
cool!!!
now, re-consider that we all like reliable code and your code as is is the
less reliable ever for its purpose in IE. I gonna probably create a post in
WR 'cause where you think "small and simple is better" here we have to deal
with big application that should never fail ( at least that's my job ) so a
bit more code to be as sure as possible is not an option for me.
Regards
On Mon, Aug 3, 2009 at 4:03 PM, DBJDBJ <dbj...@gmail.com> wrote:
>
>
> I think we all know that In IE, typeof window.alert , returns “object”
> Here is my portable isFunction() , IMHO it might be ine of the
> simplest solutions that I have seen?
>
>
> // GPL (c) 2009 by DBJ.ORG
> var isFunction = typeof (top.alert) == "object" ?
> function(x) {
> return (x + "").match(/function/) !== null ;
> }
> :
> function (x) {
> return x instanceof Function;
> }
>
> // test
> isFunction( window.alert )
> // returns true, in all browsers
>
> Enjoy …
>
> --DBJ
>
> >
>
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