Groovy Operator Overloading - Safe navigation operator
//Safe navigation operator: used to avoid a NullPointerException.
def user = User.get(1)
def username = user?.username
def user = User.get(1)
def username = user?.username
Array and Object Creation - JavaScript
var arr =[1,2,3]; var arr = new Array(1,2,3); var arr = new Array(); //empty Array arr.push(10); arr.pop(); var obj = new Object(); obj.test ="hello"; var obj= { "test" : "hello"}; function myFunction() { alert('It works!'); } var name = 'myFunction'; window[name].call(); var myObject = { firstName:"John", lastName: "Doe", fullName: function(i) { return this.firstName + " " + this.lastName+i; } }; document.getElementById("demo").innerHTML = myObject.fullName(1); //John Doe1 //Passing value via constructor function myFunction(arg1, arg2) { this.firstName = arg1; this.lastName = arg2; } alert(JSON.stringify(new myFunction("John","Doe"))) var x = new myFunction("John","Doe") //{"firstName":"John","lastName":"Doe"} alert(JSON.stringify(new myFunction())) //{} alert(JSON.stringify(new myFunc...
Comments
Post a Comment