angularjs - Event being triggered even though form field is $pristine -

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my form has 2 input fields below:

<input type="password" name="password" ng-model="password"  placeholder="enter password"  class="form-control" /> <input type="password" name="password_confirm" ng-model="password_confirm" placeholder="confirm password" class="form-control" validate-equals="password" />
please match passwords

expected: error below second input should trigger if second input field $dirty , not matching first field

however behavior not achieved.

app.directive('validateequals', function(){    return {     require: "ngmodel",     link: function(scope, element, attrs, ngmodelctrl) {        function validateequal(value) {         var valid = (value === scope.$eval(attrs.validateequals));         ngmodelctrl.$setvalidity('equal', valid);         return valid ? value : undefined;       }        ngmodelctrl.$parsers.push(validateequal);       ngmodelctrl.$formatters.push(validateequal);        scope.$watch(attrs.validateequals, function(){         ngmodelctrl.$setviewvalue(ngmodelctrl.$viewvalue)       });      }    };  })

please check full plnkr here

the culprit watch:

scope.$watch(attrs.validateequals, function(){    ngmodelctrl.$setviewvalue(ngmodelctrl.$viewvalue) });

at startup $watch fires, calling $setviewvalue() on input you've set attribute validateequals on (specifically, password_confirm). calling $setviewvalue results in field being marked $dirty (since you're setting field something).

i'm not seeing reason $watch, sets viewvalue whatever was. unless i'm missing something, should fine removing it- solving problem.

working plnkr: http://plnkr.co/edit/4qajucklva2mwajacgcf?p=preview


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