I have to build a function that will execute some tasks.
The tasks will be a parameter of the function, most likely a string array. It might look something like this :
['refresh', 'close', 'show']
The strings correspond to actual methods.
Is it possible to somehow execute the methods by using the strings of the array?
Short answer:
Yup:
var method = "refresh";
yourObject[method]();
Long answer:
It's possible, but your methods must be namespaced.
The following example will work, if you're in a browser context, because every global function is a property of window:
function refresh() {
// do it
}
var method = "refresh";
window[method]();
// or maybe
var yourObject = { refresh: function() { ... } };
yourObject[method]();
However, the following won't work (I'm showing it because closures are a common pattern in javascript):
(function() {
function refresh() {
// do it
}
var method = "refresh";
// which object contains refresh...? None!
// yourObject[method]();
})();
if your methods are attached to the window object then you can do something like this:
var methods = [ 'refresh', 'close', 'show' ];
for( var i in methods ) {
funk = window[ methods[ i ] ];
if( typeof funk === 'function') {
window.funk();
}
}
Otherwise, if your methods are methods of another object you can easily replace window with your object.
