Model does not update within ng-if
ng-if has its own scope, so you need to use:
<br/><button ng-click="$parent.foo = true;">Show foo</button>Updated fiddle: http://jsfiddle.net/78R52/1/
Ah, ng-if creates a new scope! So, "there has to be a dot in the model name"!
As others have said, ng-if has its own scope.What i want to say, it's a bad practice to put expressions in the view. The good practice is to have a scope function that's called within the view.
var ctrl = function($scope){$scope.foo = false;$scope.fn = fn;function fn(){$scope.foo = true;}/////<div ng-app ng-controller="ctrl"> foo: {{foo}} <div ng-if="foo" style="background-color: #f00;"> <p>foo</p> </div> <div ng-if="!foo"> <br/><button ng-click="fn()">Show foo</button> </div> <button ng-click="fn()">Show foo</button></div>