ng-change
Description
ng-change directive evaluates the given expression when the input changes.
Example
The following code shows how to ng-change.
<!-- w w w. j ava2s .co m-->
<!doctype html>
<html ng-app="myApp">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.0-rc.2/angular.js"></script>
</head>
<body>
<div ng-controller="MyController">
<p>type any number into the text field</p>
<input type="text" ng-model="equation.x" ng-change="change()" />
<code>{{ equation.output }}</code>
</div>
<script>
angular.module('myApp', [])
.controller('MyController', function($scope) {
$scope.equation = {};
$scope.change = function() {
$scope.equation.output = Number($scope.equation.x) +" is the new value";
};
});
</script>
</body>
</html>