AngularJS ng-required Directive
Definition and Usage
ng-required The ng-required directive sets the form field (input or text area) to required attribute.
if ng-required the expression returned in the attribute truethen the form field will be required.
ng-required Instructions are necessary for toggling values between true and false. In HTML, you cannot set the required attribute to false (the presence of the required attribute makes the element a required field regardless of its value).
Example
Set the input field to required:
Required:
<input type="checkbox" ng-model="myVar"> <input name="myInput" ng-model="myInput" ng-required="myVar">
Syntax
<input ng-required="expression</input>
Affected <input>,<select> and <textarea> and other editable elements supported.
Parameters
| Parameters | Description |
|---|---|
| expression | If it returns true, the expression that sets the required attribute will be set. |
