[Solved] what does the ! mean in Angular? i.e $scope.selected = !$scope.selected; [duplicate]

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The ! is the normal negation operator.

Inside of that function, it’s used to flip/toggle the value each time it’s called. For example, from true to false and vice-versa.

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solved what does the ! mean in Angular? i.e $scope.selected = !$scope.selected; [duplicate]