As we all know AngularJS uses the simplest form of $watch when we bind to variable in template like this {{ $ctrl.obj }}.
It should compare value of $ctrl.obj by reference, but if I mutate $ctrl.obj the change is reflected in view. The reference doesn't changed, so why?
AngularJS template binding to object
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When we use brackets (
{{}}) angular does not use anywatch(ers) for detecting changes on the expression placed inside them. Instead this expression is dirty checked and refreshed in every$digestcycle, even if it is not necessary.See this post: AngularJS : Why ng-bind is better than {{}} in angular?