Simple Implementation of the Promises API in JS

my_promise.js

var myPromise = function(arg) {
	return new Promise(function(resolve, reject) {
		if (arg === true) {
			resolve('it\'s all good');
		} else {
			reject('no good, buddy');
		}
	});
}
var setting  = confirm("Press 'OK' to succeed or 'Cancel' to fail");
myPromise(setting).then(function(res){
	alert(res);
}).catch(function(reason) {
	alert(reason);
});