angularjs - How to clear an input field after submitting a form?

Angularjs - How to clear an input field after submitting a form?

To clear an input field in AngularJS after submitting a form, you can use the ngModel directive to bind the input field to a variable in your controller. After submitting the form, you can reset the variable to an empty string to clear the input field. Here's an example:

<!DOCTYPE html> <html ng-app="myApp"> <head> <title>AngularJS Clear Input Field</title> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.9/angular.min.js"></script> </head> <body ng-controller="myController"> <form ng-submit="submitForm()"> <label for="inputField">Input Field:</label> <input type="text" id="inputField" ng-model="inputValue" required> <button type="submit">Submit</button> </form> <p ng-if="submitted">Form submitted with value: {{ inputValue }}</p> <script> angular.module('myApp', []) .controller('myController', function ($scope) { $scope.inputValue = ''; // Initial value $scope.submitForm = function () { // Your form submission logic here // Clear the input field after submission $scope.inputValue = ''; // Set a flag to indicate that the form has been submitted $scope.submitted = true; }; }); </script> </body> </html>

In this example:

  • The input field is bound to the $scope.inputValue variable using ngModel.
  • The ng-submit directive calls the submitForm function when the form is submitted.
  • Inside the submitForm function, the $scope.inputValue is set to an empty string, effectively clearing the input field.
  • The ng-if directive is used to conditionally display a message indicating that the form has been submitted.

Adjust the code according to your specific requirements and form structure.

Examples

  1. "AngularJS clear input field after form submission"

    • Code:
      <form ng-submit="submitForm()"> <input type="text" ng-model="formData.name" /> <button type="submit">Submit</button> </form> 
      $scope.submitForm = function() { // Process form submission logic // Clear input field $scope.formData.name = ''; };
    • Description: Manually clearing the input field by setting the model value to an empty string after form submission.

  2. "AngularJS clear all input fields after form submit"

    • Code:
      <form ng-submit="submitForm()"> <input type="text" ng-model="formData.name" /> <input type="email" ng-model="formData.email" /> <button type="submit">Submit</button> </form> 
      $scope.submitForm = function() { // Process form submission logic // Clear all input fields $scope.formData = {}; };
    • Description: Clearing all input fields by resetting the form data object after form submission.

  3. "AngularJS clear input field on button click"

    • Code:
      <input type="text" ng-model="formData.name" /> <button ng-click="clearInput()">Clear Input</button> 
      $scope.clearInput = function() { // Clear input field $scope.formData.name = ''; };
    • Description: Creating a separate button with a click event to clear the specified input field.

  4. "AngularJS clear input field on ng-change event"

    • Code:
      <input type="text" ng-model="formData.name" ng-change="clearInput()" /> 
      $scope.clearInput = function() { // Clear input field $scope.formData.name = ''; };
    • Description: Clearing the input field when its value changes using the ng-change event.

  5. "AngularJS clear input field using ng-model-options"

    • Code:
      <input type="text" ng-model="formData.name" ng-model-options="{ updateOn: 'default blur', debounce: { 'default': 500, 'blur': 0 } }" /> 
      $scope.$watch('formData.name', function(newValue, oldValue) { if (newValue !== oldValue) { // Clear input field $scope.formData.name = ''; } });
    • Description: Using ng-model-options with a $watch to clear the input field on change or blur events.

  6. "AngularJS clear input field with ng-if directive"

    • Code:
      <input type="text" ng-if="showInput" ng-model="formData.name" /> <button ng-click="clearInput()">Clear Input</button> 
      $scope.showInput = true; $scope.clearInput = function() { // Clear input field $scope.formData.name = ''; };
    • Description: Using ng-if to conditionally render the input field and clear it on button click.

  7. "AngularJS clear input field using ngForm"

    • Code:
      <form name="myForm" ng-submit="submitForm()"> <input type="text" name="name" ng-model="formData.name" /> <button type="submit">Submit</button> </form> 
      $scope.submitForm = function() { // Process form submission logic // Clear input field using ngForm $scope.myForm.name.$setViewValue(''); $scope.myForm.name.$render(); };
    • Description: Clearing the input field using the ngForm and $setViewValue method after form submission.

  8. "AngularJS clear input field on route change"

    • Code:
      $scope.$on('$routeChangeStart', function(event, next, current) { // Clear input field on route change $scope.formData.name = ''; });
    • Description: Clearing the input field when a route change is detected using the $routeChangeStart event.

  9. "AngularJS clear input field using ng-change and ng-model-options"

    • Code:
      <input type="text" ng-model="formData.name" ng-change="clearInput()" ng-model-options="{ updateOn: 'blur' }" /> 
      $scope.clearInput = function() { // Clear input field $scope.formData.name = ''; };
    • Description: Combining ng-change and ng-model-options to clear the input field on blur.

  10. "AngularJS clear input field with ng-show directive"

    • Code:
      <input type="text" ng-show="showInput" ng-model="formData.name" /> <button ng-click="clearInput()">Clear Input</button> 
      $scope.showInput = true; $scope.clearInput = function() { // Clear input field $scope.formData.name = ''; };
    • Description: Using ng-show to conditionally display the input field and clear it on button click.

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