AngularJS allows for data-binding to easily display immediate data in our View. This is made possible by the object scope, which acts as a connector between the Logic Code and The View. Additionally, AngularJs supports two-way binding. My question is:
How does $scope determine if an object's binding has been changed? Is there a certain condition within the scope that automatically detects these changes?
Make sure to review the angular.js file, as that's where we'll find the code for the ngBindDirective:
var ngBindDirective = ['$compile', function($compile) {
return {
restrict: 'AC',
compile: function ngBindCompile(templateElement) {
$compile.$$addBindingClass(templateElement);
return function ngBindLink(scope, element, attr) {
$compile.$$addBindingInfo(element, attr.ngBind);
element = element[0];
scope.$watch(attr.ngBind, function ngBindWatchAction(value) {
element.textContent = isUndefined(value) ? '' : value;
});
};
}
};
}];
Take note of the last two lines - a watcher is used for the ngBind attribute to apply any changes to the element.
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