How to set the input field value dynamically in AngularJS ?

Last Updated : 29 Sep, 2020

Given an input field and the task is to set the input field value dynamically with the help of AngularJS.

Approach:

A value is being set to the input field despite the user enter something or not.
ng-click event is used to call a function that sets the value to ‘This is GeeksForGeeks’ with the help of ng-model.

Example 1: In this example, the input field is read-only So the user can not modify it and the value is set dynamically.

HTML

<!DOCTYPE HTML> 
<html> 
  
<head> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"> 
    </script> 
  
    <script> 
        var myApp = angular.module("app", []); 
        myApp.controller("controller", function ($scope) { 
            $scope.nameText = ''; 
            $scope.setVal = function () { 
                $scope.nameText = "This is GeeksForGeeks"; 
            }; 
        }); 
    </script> 
</head> 
  
<body style="text-align:center;"> 
    <h1 style="color:green;"> 
        GeeksForGeeks 
    </h1> 
  
  
    <p> 
        How to set the <input> field  
        value dynamically in AngularJS 
    </p> 
  
    <div ng-app="app"> 
        <div ng-controller="controller"> 
            Input field: <input type="text" 
                readonly name="mytext" 
                ng-model="nameText"> 
            <br><br> 
            <input type="button" 
                ng-click="setVal()" 
                value="Set Dynamically"> 
            <br> 
        </div> 
    </div> 
</body> 
  
</html> 

Output:

Example 2: In this example, user can modify the input field but the value entered by user can be set dynamically.

HTML

<!DOCTYPE HTML> 
<html> 
  
<head> 
    <script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"> 
    </script> 
  
    <script> 
        var myApp = angular.module("app", []); 
        myApp.controller("controller", function ($scope) { 
            $scope.nameText = ''; 
            $scope.setVal = function () { 
                $scope.nameText = "This is GeeksForGeeks"; 
            }; 
        }); 
    </script> 
</head> 
  
<body style="text-align:center;"> 
    <h1 style="color:green;"> 
        GeeksForGeeks 
    </h1> 
  
  
    <p> 
        How to set the <input> field  
        value dynamically in AngularJS 
    </p> 
  
    <div ng-app="app"> 
        <div ng-controller="controller"> 
            Input field: <input type="text" 
                name="mytext" ng-model="nameText"> 
            <br> 
            <br> 
            <input type="button" 
                ng-click="setVal()" 
                value="Set Dynamically"> 
            <br> 
        </div> 
    </div> 
</body> 
  
</html> 