Possible Duplicate:
Get property of object in JavaScript
var Terminal = function() {
this.walk = function() {
alert('hello');
}
this.go = 'walk';
this.move = 'walk';
}
var term = new Terminal();
var fn = 'walk';
if (term.hasOwnProperty(fn)) {
term.{fn};
}
How can I run the method term.walk() using the string 'walk'?
There are a couple of ways. The simplest is
term[fn]();
Or alternatively
var funcObj = term[fn];
funcObj.apply(term);
Use term[fn] to access the <fn> property of term.
All properties can be accessed using object["propertyname"]. Globally defined properties/methods can be called through window["propertyname"].
There's only one occasion where variables cannot be accessed through obj["prop_name"]:
function foo(){
var bar = 759;
//There is no "obj" where obj.bar exists.
}
