Angular Interview Practice

Which method correctly retrieves an element’s attribute value in JavaScript?

1. element.value('attributeName')

2. element.getAttribute('attributeName')

3. element.fetchAttribute('attributeName')

4. element.retrieve('attributeName')

The correct answer is: element.getAttribute('attributeName')

The method that correctly retrieves an element’s attribute value in JavaScript is, indeed, to use the getAttribute() method. This method is a standard DOM (Document Object Model) function that allows you to access the value of a specified attribute on an HTML element. When you call element.getAttribute('attributeName'), it checks the specified element for the provided attribute and returns its value as a string. If the attribute does not exist, it will return null. This method is commonly used in tasks such as reading custom attributes, retrieving the values of standard attributes like "src" in img tags, or fetching any attribute from an HTML element. The other options reflect methods that either do not exist in the JavaScript API or have improper syntax. They do not conform to the standards established for DOM manipulation in JavaScript, making them ineffective for obtaining attribute values. Understanding how to properly utilize getAttribute() is crucial for working with the DOM effectively.