Can I store JavaScript functions in arrays?

Question

How can I store functions in an array with named properties, so I can call like

FunctionArray["DoThis"]

or even

Function         


        

Answer 1

You can access an object's properties through its name (x["A"]). If you want to assign indexes (0 = "A") you have to do this, and here is an example. (I'm not sure if the for loop will work on any browser; I've tested on Firefox, but you can get the idea.)

var x = {};

x.A = function() { alert("func 1"); };
x.B = function() { alert("func 2"); };


var i = 0;
for (a in x)
{
    x[i] = x[a];
    ++i;
}


x[0](); // func 1
x[1](); // func 2
x["A"](); // func 1
x["B"](); // func 2