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A closure in JavaScript is an inner function that has access to its outer function's scope, even after the outer function has returned control. A closure makes the variables of the inner function private. A Simple example of a closure is shown below: var.

IIFE ( Immediately invoked function expression ) is a function that's executed as soon as it's created. It is a self invoking anonymous function. It has no connection with any events or asynchronous execution. Syntax: ( function( ) {  .

Event handlers are used to execute a function based on the action performed by the user like onclick, onload, onmouseover etc In the below example 3 buttons are available on the web page - Touch me 1, Touch me 2 and Touch me 3 onClick event.

Two functions named as first and second are created then i called both functions in other function called start. On the page load "start function" will be called when script is executed. Start function will call "first function" and then "second function". Javascript.

1. What is C#.NET? Ans: C#.NET is an object oriented programming language used as code behind language to create .NET applications. 2. What is namespace? Ans: .NET Framework uses namespaces to organize its many classes, as follows: System.Console.WriteLine("Hello.

Create website- ASP Project Create class library - BAL Create class library - DAL Add references as below: BAL in ASP Project DAL in BAL Adding class: Right click on dal project add class with name as DUser.cs Make class as public bcoz it is.

Unit testing is done by the developer to check your code is working as expected or not. It is called unit testing as the developed functionality is tested individuals as small units. Visual Studio Test Explorer is used to find the list of unit test.