I have a simple html block like:  <span id="replies">8</span>   Using jquery I'm trying to add a 1 to the value (8).  var currentValue = $("#replies").text(); var newValue = currentValue + 1; $("replies").tex...

Consider empty JavaScript array:  var a = []; alert(a == false); // shows true alert(!a); // shows false!   How to explain this? What are the rules?...

I have a type  type Rating = 0 | 1 | 2 | 3 | 4 | 5 | number   Now I want to do something like this.  let myRating:Rating = 4 let rate:number = myRating as number   How can I cast my myRating into number primitive type?  It is giving me error as:...

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All:  Here is the information about my development environment:  MongoDB 3.0.0  MongoDB C# Driver Version 1.7.0.4714  Microsoft Visual Studio Professional 2013  .NET Framework 4.0  Here is one of the POCO Classes that is used in our project:      pub...

function Person() {       var self = this;        self.personName="";       self.animals=[]; }  function Animal(){      var self=this;       self.animalName="";      self.run=function(meters){          .....      } }   Server response...

I have noticed that PHP and JavaScript treat octal and hexadecimal numbers with some difficulty while type juggling and casting:  PHP:  echo 16 == '0x10' ? 'true' : 'false'; //true, as expected echo 8  == '010'  ? '...

I want to create a class that has several public variables and methods,but behaves as number when arithmetic operators are applied.Example :                a = new hyperNum(4)             a.func(4)             a.assign(2.0)             alert(a + 1.0)...

Which is the the best way (if there is one) to cast from number to string in Typescript?  var page_number:number = 3; window.location.hash = page_number;    In this case the compiler throws the error:     Type 'number' is not assignable to ty...

Given the following code:  function Person(firstName, lastName) {     this.FirstName = firstName;     this.LastName = lastName; }  Person.prototype.showFullName = function() {     return this.FirstName + " " + this.LastName; };  var person =...