I'm encountering a problem while utilizing $scope.$watch in my ES6 project. The watch triggers once and then doesn't work thereafter.
Below is the snippet of code:
export class SomeController {
constructor($log, $scope) {
'ngInject'
this.watched = 1;
$scope.$watch('watched',(nv,ov)=>{
$log(nv); //only fires once
});
}
otherMethods(){}...
}
Specifically, I am utilizing this generator: https://github.com/Swiip/generator-gulp-angular
If you're looking to implement this functionality, you might want to consider the following code snippet:
$scope.$watch(() => this.watched, function (newValue, oldValue) {
console.log(newValue);
});
You can find more detailed explanations here.
For a practical demonstration, check out this JSFiddle demo.
Additionally, the event is triggered during $digest cycles for various scenarios including:
User interactions like changing input values or clicking buttons
Callbacks from XHR responses
Changes in browser location
Callback functions from timers such as setTimeout and setInterval
The event can also be triggered explicitly if needed.
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