php - How to restrict user to enter unique email id by using ng-chnage directive + angularjs -


i want restrict user enter unique email id in form field , in case user enter email exist in database, display message email id exist.

<div class="form-group">       <input name="email" class="form-control" ng-model="reg.email" required ng-change="getunique_id()" type="text">           <span class="errormessage" ng-show="myform.email.$dirty && myform.email.$error.unique">email in use</span>  </div>

i totally confuse how getunique_id .... there anyone,who can me this?

any appreciated.thanks in advance


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