React Day02

How can you handle multiple form inputs in React?

• Using separate state variables for each input

• Using an object in state with input names as keys

• Using session storage

• Using Redux only

How can you make an input field controlled in React?

• By setting its value attribute to a state variable

• By using defaultValue instead of value

• By setting contentEditable=true

• By wrapping it inside a <form>

What are props in React?

• A way to manage component state
  

• A method for updating the UI

• A way to pass data between components

• A way to create a component

How are props passed in React?

• Using this.props in functional components

• By passing them as arguments to a function

• Using global variables

• By declaring them inside useState

Which syntax correctly passes a prop named name to a child component?

• <Child name="John" />

• <Child prop.name="John" />

• <Child {name="John"} />

• <Child>John</Child>

Props are immutable in React. What does this mean?

• Props cannot be changed inside a component

• props are automatically updated when the parent state changes

• Props are stored in local storage

• Props need to be initialized with useState

What happens if a prop is missing in a component?

• React will throw an error

• The component will not render

• The prop will be undefined

• The default value will always be applied

In TypeScript, props should be defined using an (a)   .

React Router’s <Route> component needs two main props: path and

(a)  

The function used to navigate programmatically in React Router is

(a)