The ng-if directive in AngularJS is used to conditionally render elements based on a Boolean expression. It allows you to show or hide elements based on the value of a variable or expression.
Syntax & Example:
In this example, the paragraph element will only be rendered if the showGreeting variable is true. If the checkbox is unchecked, the paragraph will be hidden.
Key points:
The ng-if directive removes the element from the DOM if the condition is false, improving performance.
You can use any valid JavaScript expression as the condition.
You can combine ng-if with other directives, such as ng-show and ng-hide, for more complex conditional rendering scenarios.
By using the ng-if directive, you can create dynamic and responsive user interfaces in your AngularJS applications.