Asynchronous way of executing array of JavaScript functions

gistfile1.js

function f1(cb){
	console.log("I am f1");
	cb();
}
function f2(cb){
	console.log("I am f2");
	cb()
}
function f3(){
	console.log("I am f3");
}
var runTasks = function(funcs, scope) {
    (function Fn() {
          if(funcs.length > 0) {
		// var params = [Fn].concat(Array.prototype.slice.call(arguments, 0));
              funcs.shift().call(scope || {}, Fn);
          }
    })();
};
 
var list = [f1,f2,f3];
runTasks(list);