What are some examples of lifecycle hooks in programming?

What are some examples of lifecycle hooks in programming?

Lifecycle hooks are methods that allow you to run code at specific points in a component's lifecycle. For example, in React, you have hooks like useEffect that run after the component mounts or updates.

Can you give me a specific example of how to use useEffect?

Sure! Here's a simple example: you can use useEffect to fetch data when a component mounts.

useEffect(() => {
  fetch('https://api.example.com/data')
    .then(response => response.json())
    .then(data => setData(data));
}, []); // Empty array means it runs once after the initial render

What about lifecycle hooks in Angular?

In Angular, you have hooks like ngOnInit and ngOnDestroy. For instance, ngOnInit is called after the component is initialized, and you can use it to fetch data or set up subscriptions.

Are there lifecycle hooks in Vue.js as well?

Yes, Vue.js has lifecycle hooks like mounted, updated, and destroyed. For example, you can use mounted to run code after the component is added to the DOM.