javascript - Add a line of code to ALL functions

Question

So I am working in JS a lot, and I am working a lot with events (try to stay as modular as possible). Current I am calling Event.fire('eventName') at the end of every function. I am looking for a way to have ANY function in my object/class automatically call an Event.fire([function name]) at the end of all functions

Example:

function MyClass(){
   this.on('someFunc', this.funcTwo);
   this.someFunc();
}
MyClass.prototype.on = function( event ){
   // the event stuff //
}
MyClass.prototype.someFunc = function(){
   console.log('someFunc');
}
MyClass.prototype.funcTwo = function(){
   console.log('funcTwo');
}

Answer 1

You could try something like this, dynamically modifying your functions:

var obj = MyClass.prototype;
for (var prop in obj)
    if (typeof obj[prop] == "function") // maybe also prop != "on" and similar
        (function(name, old) {
            obj[prop] = function() {
                var res = old.apply(this, arguments);
                Event.fire(name);
                return res;
            };
        })(prop, obj[prop]);