What is the process for configuring ngModelOptions using JavaScript?

I am currently developing a custom directive that will need to handle the ngModelOptions of an element. I have considered using a jQuery selector to change the element's HTML, but I am curious if it can be done more consistently with JavaScript.


UPDATE 1

Since I need to set 

ngModelOptions="{updateOn:'blur'}
" for all input elements in my form, I would like to create a directive to accomplish this, similar to 
<input type='text' updateBlur/>

I am wondering if it is possible to set these options programmatically, such as:

myElement.attrs.ngModelOptions.updateOn = "blur default";
javascriptangularjsdirective

Answer №1

If you want to implement this functionality in Angular, it's best to follow the "angular way". Consider incorporating a similar approach within your directive:

angular.module("myApp").directive('myDirective', function($compile){
    link: function(scope, element, attrs) {
         scope.$watch( 'scope.someValue', function(){
            element.attr('ng-model-options', "new value");
            $compile(element.contents())(scope);
         });

    }
});

By doing this, you can monitor changes in scope.someValue and update the directive accordingly. Trying to achieve this with jQuery may not work as expected due to AngularJS not recognizing the changes.

However, utilizing 

$compile(element.contents())(scope);
will help accomplish the desired outcome.

UPDATE: Just using $scope.apply() won't suffice. It's crucial to trigger a digest cycle when modifying the structure, like adding more elements to an array. In such cases, re-compilation is essential for proper functioning.

Answer №2

If you're having trouble, please provide more specific details about your issue.

In general, it's recommended not to use jQuery selectors for manipulating the DOM while working with Angular.

If you need to manipulate the ngModelOptions attribute, it's best to do so within your directive using the link function arguments:

link: function(scope, element, attrs){ 
   ...
//if you want to change the ngModelOptions attribute
$(element).attr('ng-model-options', 'whatever')
}

For a more in-depth explanation, check out: https://docs.angularjs.org/guide/directive

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