Angular ng-model Directive

AngularJS ng-model Directive

The ng-model directive binds the value of HTML controls (input,
select, textarea) to application data.

The ng-model Directive

With the ng-model directive you can bind the value of an input field
to a variable created in AngularJS.


<div ng-app=”myApp” ng-controller=”myCtrl”>
<input ng-model=”name”>

var app = angular.module(‘myApp’, []);
app.controller(‘myCtrl’, function($scope) {
= “John Doe”;

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Two-Way Binding

The binding goes both ways. If the user changes the value inside the input
field, the AngularJS property will also change its value:

Validate User Input

The ng-model directive can provide type validation for application data (number,
e-mail, required):


<form ng-app=”” name=”myForm”>
<input type=”email” name=”myAddress” ng-model=”text”>
  <span ng-show=”myForm.myAddress.$”>Not a valid e-mail

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In the example above, the span will be displayed only if the expression in
the ng-show attribute returns true.

If the property in the ng-model attribute does not exist,
AngularJS will create one for you.

Application Status

The ng-model directive can provide status for application data (valid,
dirty, touched, error):

CSS Classes

The ng-model directive provides CSS classes for HTML elements, depending
on their status:


<style> {


<form ng-app=”” name=”myForm”>
Enter your name:
  <input name=”myName” ng-model=”myText” required>

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The ng-model directive adds/removes the following classes, according to the
status of the form field:

  • ng-empty
  • ng-not-empty
  • ng-touched
  • ng-untouched
  • ng-valid
  • ng-invalid
  • ng-dirty
  • ng-pending
  • ng-pristine