Angular Interview Practice

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Prepare for Angular Interviews with real-life questions. Utilize quizzes and examples to deepen understanding and enhance your skills. Gear up to ace your interview!

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Practice this question and more.

When accessing a boolean attribute, how is it represented in the DOM?

As a numeric value
As a true or false property
As a string value
As an object

The correct answer is: As a true or false property

In the DOM, boolean attributes are represented as properties that can either evaluate to true or false. When a boolean attribute is present on an element, it is considered true, and when it is absent, it is false. This means that the browser treats these attributes as properties rather than text or objects. For example, when using the `disabled` attribute on an input element, if the attribute is present, the value of the `disabled` property will be true. If it is not present, the property will report as false. This characteristic allows developers to easily check the state of the attribute using JavaScript, enhancing dynamic behavior in applications. The other representations listed—numeric values, string values, and objects—do not accurately reflect how boolean attributes function within the DOM. Boolean attributes do not have a numeric or string representation; they simply toggle between the presence (true) and absence (false) in the DOM structure.