I have a function in JavaScript:
function alertMe($a)
{
alert($a);
}
Which I can execute like this: alertMe("Hello");
I want to do is assign alertMe("Hello") with the "Hello" parameter to a variable $func, and be able to execute this later by doing something like $func();.
I would like to add the comment as answer
//define the function
function alertMe(a) {
//return the wrapped function
return function () {
alert(a);
}
}
//declare the variable
var z = alertMe("Hello");
//invoke now
z();
(function(a){alert(a);})("HelloWorld");Just build the function you need and store it in a variable:
var func = function() { alertMe("Hello") };
// and later...
func();
You could even make a function to build your functions if you wanted to vary the string:
function buildIt(message) {
return function() { alertMe(message) };
}
var func1 = buildIt("Hello");
var func2 = buildIt("Pancakes");
// And later...
func1(); // says "Hello"
func2(); // says "Pancakes"
You should use eval to execute saved function. For example:
var func = "alertMe('Hello')";
eval(func);
