Call function via string?

Question

I have a string variable js_inject and I am looking for a way to call the js_inject() function via the string. Is there any way to do this other than the example below? I am really looking to do this without conditionals.

var myString = 'js_inject';
moderator(stringVar){
 if(stringVar == 'js_inject'){
 js_inject();
 }
}
moderator(myString);

• David Laberge: Have you try eval(myString)? Where my myString = 'js_inject()'. It might be simplistic, but that should work.
• GolezTrol: Except eval is evil. A script kiddy could very well alter this javascript code and kill his own browser...
• KooiInc: @GolezTrol A script kiddy could very well alter this javascript code and kill his own browser ... looks like a strong argument in favor of eval
• Ray Toal: Always great to see this question. Again. And again. 496961, 359788, 912596, 1451145, 1144297, .... :-)
• KooiInc: possible duplicate of How do I call a JavaScript function name using a string?

Answer 1

If it's a global function, you can write window[stringVar]().

Answer 2

A function you declare in the global scope becomes part of the window object, so you should be able to call this:

window['js_inject']();