About AngularJs ng-change event/directive usage
This article mainly introduces the summary of AngularJs ng-change events/commands. The editor thinks it is quite good, so I will share it with you now and give it as a reference. Let’s follow the editor to take a look, I hope it can help everyone.
Definition and Usage
The ng-change directive is used to tell AngularJS what to do when the value of an HTML element changes.
The ng-change directive needs to be used with the ng-model directive.
AngularJS ng-change directive will not override the native onchange event. If this event is triggered, both the ng-change expression and the native onchange event will be executed.
ng-change event is triggered every time the value changes, it does not need to wait for a completed modification process, or wait for the action to lose focus.
ng-change event is only for actual modification of the input box value, not modification through JavaScript.
Syntax
<element ng-change="expression"></element>
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