Using Switch Case Statement In AngularJS Application Using JavaScript/ jQuery

Let us see how to use switch-case statements in JavaScript/jQuery with AngularJS implementation and in .NET Applications.

Note

Here, one important point needs to be remembered about switch-case statements in JavaScript/jQuery, which is that this is  also working in a similar way as we use it in C# and .NET applications.

First of all, we will see how it works in .NET applications.

Let us see in detail with the code snippets given below. 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace switchCase {
    class myInfoTypes {
        public int typeValue {
            get;
            set;
        }
        public string typeDesc {
            get;
            set;
        }
    }
    class MyApp {
        static void Main(string[] args) {
            List < myInfoTypes > lstmyInfoTypes = new List < myInfoTypes > ();
            lstmyInfoTypes.Add(new myInfoTypes {
                typeValue = 0, typeDesc = "MyInf0-0"
            });
            lstmyInfoTypes.Add(new myInfoTypes {
                typeValue = 1, typeDesc = "MyInf0-1"
            });
            lstmyInfoTypes.Add(new myInfoTypes {
                typeValue = 2, typeDesc = "MyInf0-2"
            });
            lstmyInfoTypes.Add(new myInfoTypes {
                typeValue = 3, typeDesc = "MyInf0-3"
            });
            int value = lstmyInfoTypes[2].typeValue;
            switch (value) {
                case 0:
                    Console.WriteLine(lstmyInfoTypes[2].typeDesc);
                    break;
                case 1:
                    Console.WriteLine(lstmyInfoTypes[2].typeDesc);
                    break;
                case 2:
                    Console.WriteLine(lstmyInfoTypes[2].typeDesc);
                    break;
                case 3:
                    Console.WriteLine(lstmyInfoTypes[2].typeDesc);
                    break;
            }
            Console.Read();
        }
    }
}

Explanation

Output of the above program is given below.

MyInf0-2

Now, let’s see how to use it in JavaScript/jQuery with AngularJS implementation.

Let us see in detail with the code snippets given below.

var myInfoTypes = {
    "MyInf0-0": 0,
    "MyInfo-1": 1,
    "MyInfo-2": 2,
    "MyInfo-3": 3
};
$scope.bindMyInfoTypes = function(typeValue) {
    switch (parseInt(typeValue)) {
        case myInfoTypes.MyInfo - 0:
            $scope.MyInfo = "MyInfo-0";
            console.log("It is" + $scope.MyInfo);
            break;
        case myInfoTypes.MyInfo - 1:
            $scope.MyInfo = "MyInfo-1";
            console.log("It is" + $scope.MyInfo);
            break;
        case myInfoTypes.MyInfo - 2:
            $scope.MyInfo = "MyInfo-2";
            console.log("It is" + $scope.MyInfo);
            break;
        case myInfoTypes.MyInfo - 3:
            $scope.MyInfo = "MyInfo-3";
            console.log("It is" + $scope.MyInfo);
            break;
    }
}
//Invoke above function as like shown in below code
$scope.bindMyInfoTypes(2);

Code explanation

var myInfoTypes = { "MyInf0-0": 0, "MyInfo-1": 1, "MyInfo-2": 2, "MyInfo-3": 3 };

The line of code given above indicates that

We stored the data inside the variable with the name myInfoTypes with typeValue and its associated information format.

• Now, in order to bind type value, we need to invoke bindMyInfoTypes() function with typeValue as a parameter.

Let us say we will invoke it with the value 2, as shown below.

$scope.bindMyInfoTypes(2);

Now, observe once we invoked

$scope.BindMyInfoTypes(2) this function with typeValue ==2

The program given above will produce the output, as expected; i.e.,

• It is MyInfo-2

It matches the case with the value 2.

It is working similarly as we use it in .NET Applications.