Javascript strings and objects

Question

In js can I call a function in an object from a string? Hm, I show you with an example:

var Object = {
    callMe : function() { }
}

Object.callMe();

This I can do, but what if I want to do this:

var string = 'callMe';
Object.string();

Can I somehow do this? Maybe I'm just thinking wrong here

Nick Craver · Accepted Answer · 2010-11-30 10:28:26Z

10

For this use bracket notation, like this:

var string = 'callMe';
Object[string]();

In JavaScript obj.thing (dot notation) is accessing the same thing as obj["thing"] (bracket notation).

answered Nov 30, 2010 at 10:28

Nick Craver

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Comments

Klemen Slavič · Accepted Answer · 2010-11-30 10:30:06Z

3

var myObject = {
  myFunction: function() { return "Hooray!"; }
}

var methodName = "myFunction";

alert( myObject[methodName]() );

answered Nov 30, 2010 at 10:30

Klemen Slavič

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