Salesforce JavaScript Developer Practice Exam

What types of items can be targeted by events in the browser?

1. A single element, some HTML documents, and user controls

2. Only HTML documents and the entire window

3. A single element or the entire browser window

4. HTML elements only

The correct answer is: A single element or the entire browser window

Events in the browser can target a variety of items, which include individual HTML elements or the entire browser window. This flexibility allows developers to create interactive web applications by attaching event listeners to specific elements, such as buttons or inputs, as well as to the window object itself, which can respond to actions like resizing, scrolling, or loading the page. For instance, a click event could be registered on a button (a single element), while a resize event could be registered on the window to perform actions whenever the browser window is resized. This ability to register events at different levels makes option C the most comprehensive and correct choice. The other options limit the scope of what can be targeted by events. While HTML documents and controls are important, focusing solely on those aspects does not consider the broader range of potential targets, such as the window itself, which is essential for managing global events. Hence, option C fully encompasses the functionality that events can target within the browser environment.