angularjs - Warn user before navigating to a different view -

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I want to warn the user and before that the user navigates from some pages in their application, like a new one Message view

If you can say a link or button to navigate to another route or state , You can easily show a model that verifies navigation: 

  & lt; A href = "" ng-click = "goToAnotherState ()" & gt; Go .. & Lt; / A & gt; $ Scope.goToAnotherState = function () {// show modal and confirm if your choice is (modalResponse.Ok) {$ state.go ('anotherstate'); }}

Another option would be to do this in the $ locationChangeStart event of the UI-router, but if you are looking at it only here , The first approach is better $ locationChangeStart approach: 

  $ rootScope $ ('$ LocationChangeStart', function (event, next, previous) {event.preventDefault (); // Show Modal if (modalResponse.ok) {var destination = next. Substr (next.indexOf ('#') + 1, next.length) .trim (); $ location.path (destination)}}

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