Why value of the ng-model is not updated with the expression. Before
ng-model is defined value get updated
Value will be updated as soon as phase2 or phase3 changes
*<input type="text" name="phase1" value="{{phase2 - phase3}}" ></input>*
Value will not be updated
*<input type="text" name="phase1" value="{{phase2 - phase3}}"
ng-model="phase1"></input>*
So I think of writing a directive which will evaluate the expression inside
the directive and updated the output to model,
Here is html it will look like
*<input type="text" name="phase1" ng-model="phase1" my-value="{{phase2 -
phase3}}" my-model-value></input>*
*Directive:*
*myApp.directive('myModelValue', function(){*
*return {*
* restrict: 'A',*
* require: 'ngModel',*
* scope: {*
* model: '=ngModel',*
* value: '@myValue'*
* },*
* link: function (scope, element, attr, controller) {*
* scope.model = scope.value;*
* }*
* };*
*});*
This directive evaluate only at load time, but I want
to continuously update/watch as the dependent fields (phase2 & phase3)
changes.
I can update value from controller but I want to do it from html. Please
help me it it possible or against the working of angular
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