Salesforce JavaScript Developer Practice Exam

The lifecycle hooks available in Lightning Web Components are specifically designed to provide developers with a means to respond to various stages in the component's lifecycle. The correct choice identifies four essential lifecycle hooks that serve distinct purposes during the component's lifecycle.

ConnectedCallback is invoked when a component is inserted into the DOM, making it an appropriate place to execute code that needs to run right after the component is added to the page, such as initializing data or setting up event listeners.

RenderedCallback is called after the component's template has been rendered in the DOM. It allows developers to perform operations that require access to the DOM, such as DOM manipulation or integrating with third-party libraries that depend on the rendered state of the component.

DisconnectedCallback occurs when a component is removed from the DOM. This is a crucial point in the lifecycle for cleanup tasks, such as removing event listeners or canceling network requests to prevent memory leaks.

ErrorCallback is invoked when an error is thrown from a component, allowing developers to handle and respond to errors gracefully.

Understanding these specific lifecycle hooks is vital to effectively managing the state and behavior of Lightning web components, making option B the accurate choice in this context.