Salesforce JavaScript Developer Practice Exam

In the provided code, what is the value of event.target when the button is clicked in the nested structure of divs?

1. Outer div

2. Inner div

3. button

4. An array of all nested elements.

The correct answer is: button

The value of event.target when the button is clicked refers to the specific element that triggered the event within the DOM. In the context of a nested structure of divs with a button inside, clicking the button initiates the event and makes the button the direct target of that event. This means that event.target will return a reference to the button element itself, rather than any of its parent elements such as the outer or inner divs. Understanding this behavior is crucial in JavaScript event handling, as it helps in managing events effectively, particularly when working with nested elements or event bubbling. In contrast, if any of the surrounding divs were the target of the click, event.target would return those respective elements instead. Thus, the essence of this concept lies in recognizing that the event target points to the exact element that was interacted with, which in this case is the button.