When using a portal, what is the second argument?ReactDOM.createPortal(x, y);

What is this pattern called? const [count, setCount] = useState(0);

What is the first file loaded by the browser in a basic React project?

You are rendering a list with React when this warning appears in the console: "Warning: Each child in a list should have a unique 'key' prop." How do you fix this issue?

How would you generate the boilerplate code for a new app that you are building to collect underpants?

What is the process of deciding whether an update is necessary?

Which of the following statements are correct about ReactJS forms?

In relation to ReactJS Flux, which of the following options is used for specifying the changes that are triggered in an application?

.In ReactJS, which of the following options is used for storing the read-only data that is passed from a parent, and that data belongs to the parent and cannot be changed by its children?

Which of the following statements is NOT correct about the ReactDOM.render() method?

Which of the following Lifecycle methods of ReactJS is a part of the update phase and not the initial phase?