The following JavaScript code is very confusing to me. Could anyone help me understand. Why does PersonY not have prototype property.  PersonX = function(){}; PersonY = new function(){}; alert(PersonX.prototype); alert(PersonY.prototype);     ?...
In the middle of Mozilla documentation page it switches (without clear enough explanation) examples from  WorkerBee.prototype = Object.create(Employee.prototype);   to   WorkerBee.prototype = new Employee;   Second form new Employee will initialize p...
Consider this code:  function klass( z ) {     this.a = z;     return this; }  var b = klass( 5 ); var c = new klass( 9 );    When I run it in Chrome and check in the console, b turns out to be of type DOMWindow, while c is of type klass.    Although...
Update  If this is not possible, please feel free to provide an answer explaining why.  I'd be happy to mark as it accepted.    I'd like to slightly simplify the following code (two steps for an object "declaration", I'd like to h...
I'm trying to learn to program. I've gone through a list of tutorials sites online and I'm stuck on a thing that I think is extremely important for me to understand.  My questions:   (This is what I'd like to understand most) In my fo...
In line (B), Grab()-method of (A)-object is executed, after accepting an argument  new sg.SelectionTarget().   With this "new" keyword, another object is created.   Is that another sg instance, or another SelectionTarget() member function in...
A nasty gotcha in javascript is forgetting to call new on a function meant to be instantiated, leading to this being bound to a different object (usually the global) instead of a fresh one. One workaround I read about is to check for it explicitly in...
I have created this function:  <script language="javascript">     function createTooltip(var elementX, var contentX)     {         $(elementX).qtip({             content: contentX,             style: { name: 'cream' },         }...
I have created my own new function which creates an object and returns it     function Person(firstName, lastName) {     this.firstName = firstName     this.lastName = lastName }  Person.prototype.getName = function () {     console.log(this.firstNam...

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