JS Call function inside function run-time with string

Question

I've found here is a good explication of the difference between run-time functions and parse-time ones. Bit what i'm trying to do is something like this

var funtionName = 'functionInside';
var start = function(){
 var a = function(){doSomething();}
 return {functionInside:a} 
};

And i want to call function 'functionInside' with the variable, something like

start.window[funtionName]()

Thanks in advance!

Answer 1

There are couple of ways to do that depending on what you need.

Here are two examples:

var start = {
 functionInside : function(){
 doSomething(); 
 }
};
start[funtionName](); //different ways to invoke
start.functionInside();

Here's another approach:

var start = function() {
 this.functionInside = function() {doSomething();}
}
var s = new start();
s[funtionName](); //different ways to invoke
s.functionInside();

• Braian Mellor: and if i want to know which function was call??
• Benny Lin: add conole.log or alerts in different areas so you can see. Or in chrome, add stops so you can trace the code.