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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Which method would you use to check if an element has a specific ID attribute?

getAttribute()
hasAttribute()
checkId()
existsAttribute()

The correct answer is: hasAttribute()

The method to use for checking if an element has a specific ID attribute is the hasAttribute() method. This method is designed to determine whether an attribute is present on the specified element, returning a boolean value: true if the attribute exists and false if it does not. When assessing an element's attributes, hasAttribute() specifically allows you to verify the existence of an attribute like "id", making it straightforward to check if the element you are working with has the particular ID you are interested in. In terms of the other options, while getAttribute() retrieves the value of a specified attribute, it does not tell you if the attribute exists, as it will return null if the attribute is absent. The options checkId() and existsAttribute() are not standard methods in the DOM API, meaning they wouldn’t function in this context. Overall, hasAttribute() is the most appropriate and efficient choice for checking the presence of an ID attribute on an element.