Questions and answers

The following are some questions and answers to refresh your knowledge:

1. What is React?

   It's a tool that allows us to design a component and manage its update with a render engine.

2. What is JavaScript ES6?

   JavaScript has all the latest features published as ES6. React takes advantage of them, using features such as the arrow function, template strings, and destructuring. Using them in your project would make your code more efficient, expressive, and maintainable.

3. What's CSS-in-JS?

   CSS-in-JS refers to one opinionated but popular way to apply styles to a React component. The styles applied are localized to the component and don't collide with any other components. Moreover, the styles can be wired with any JavaScript expression to support dynamic styles at runtime.

4. What is JSX code?

   React allows us to use JSX code to write HTML-like code. Practically, they look quite similar, except JSX allows us to transform these statements into native...