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Consider an example of getting unique elments from an array a = [1,1,2,3,8,2] Array.prototype.unique = function(){     var array = this;     return array.filter(function(ele, index, arr){         return index == arr.indexOf(ele);     }); } and in our Javascript, var array = [1,1,2,3,8,2]; var uniqueElments = arrray.unique(); //Output will be 1,2,3,8 But the issue is few of the older version browsers including IE7 that doesn't support some array features - such as indexOf or filter, so we can use jquery functionalities like:     use $.grep instead of Array.filter The $.grep() method removes items from an array as necessary so that all remaining        items pass a provided test. The test is a function that is passed an array item and the index of the item within the array. Only if the test returns true will the item be in the resu...

In this article we will understand the different ways of creating custom helper method in ASP.NET MVC4 application. Though we have built-in html helpers like Html.ActionLink(), Html.TextBox() and many more, some times we may need to have custom helper methods for example Image or a block of html controls which is commonly used across the application like Address fields. Custom HTML Helpers make it easier to generate view content. We can create custom helpers in three ways: 1. with   Static Methods 2. with   Extension Methods 3. with   @helper   in the razor view. Let's understand how to implement the same. 1. Static Methods: In this approach we will create a static method and use that method in the view, here its is ImageStatic method which will return HtmlString. CustomHelper.cs: namespace HelperApplication.Helpers { public static class CustomHelpers { //Static method public static IHtmlString ImageStatic( string src, st...