Using $setValidity inside a Controller
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angularjs
Why do i have to call $scope.$digest() here?
Because the callback attached to the mouseenter event is outside of angular’s scope; angular has no idea when that function runs/ends so the digest cycle is never ran. Calling $digest or $apply tells angular to update bindings and fire any watches.
$apply already in progress error
You are getting this error because you are calling $apply inside an existing digestion cycle. The big question is: why are you calling $apply? You shouldn’t ever need to call $apply unless you are interfacing from a non-Angular event. The existence of $apply usually means I am doing something wrong (unless, again, the $apply happens from a non-Angular event). If $apply really is appropriate … Read more
Simple Popup by using Angular JS
Built a modal popup example using syarul’s jsFiddle link. Here is the updated fiddle. Created an angular directive called modal and used in html. Explanation:- HTML On button click toggleModal() function is called with the button message as parameter. This function toggles the visibility of popup. Any tags that you put inside will show up in … Read more
`ui-router` $stateParams vs. $state.params
The documentation reiterates your findings here: https://github.com/angular-ui/ui-router/wiki/URL-Routing#stateparams-service If my memory serves, $stateParams was introduced later than the original $state.params, and seems to be a simple helper injector to avoid continuously writing $state.params. I doubt there are any best practice guidelines, but context wins out for me. If you simply want access to the params received into the url, then use $stateParams. … Read more
How to execute AngularJS controller function on page load?
On the one hand as @Mark-Rajcok said you can just get away with private inner function: Also you can take a look at ng-init directive. Implementation will be much like: But take care about it as angular documentation implies (since v1.2) to NOT use ng-init for that. However imo it depends on architecture of your app. I used ng-init when I wanted to … Read more
How to set the id attribute of a HTML element dynamically with angularjs (1.x)?
ngAttr directive can totally be of help here, as introduced in the official documentation For instance, to set the id attribute value of a div element, so that it contains an index, a view fragment might contain which would get interpolated to
Use of $parse in angular js
Angular runs $parse automatically when it runs the $digest loop, basically $parse is the way angular evaluates expressions. If you wanted to manually parse an expression, you can inject the $parse service into a controller and call the service to do the parsing for you. Here’s a code snipped from ng-book that watches then parses … Read more
What is .$on() in AngularJS
$on is related to $broadcast and $emit – which is a way to trigger code from other places. The first thing about $on you should know is that it’s a method of $scope The second thing you should know is $ prefix refers to an Angular Method, $$ prefixes refers to angular methods that you should avoid using. Now lets get into detail … Read more
How do I store data in local storage using Angularjs?
this is a bit of my code that stores and retrieves to local storage. i use broadcast events to save and restore the values in the model.