I would like to know an alternative, more elegant way to write the following method.  I am especially not enthusiastic of the nested if statement.hasUserSavedCredentials: function () {            var userName = Storage.get(CONFIG.app.storageUserName),                password = Storage.get(CONFIG.app.storagePassword),                result = false;            if (userName !== null && password !== null) {                if (userName.length > 0 && password.length > 0) {                    result = true;                    // save in state for faster retrivial                    State.xx.isSaved = result;                    State.xx.userName = userName;                    State.xx.password = password;                } else {                    result = false;                    State.xx.isSaved = false;                }            }            return result;        },
Null checks in user validation
javascript;validation
You can remove result = false;, as result is already false.And to get rid of the nested statements, you could use early returns:if (userName == null && password == null) {    return false;}if (userName.length <= 0 && password.length <= 0) {    State.xx.isSaved = false;    return false;}State.xx.isSaved = true;State.xx.userName = userName;State.xx.password = password;return true;Is it correct that when username is null, isSaved = false should not be set? Because if not, then you could just combine the two if statements, either in my example, or in yours.