Fetch

Question 1

What does fetch( ) return?

Answer 1

returns a promise that is fulfilled once the response is available.
only rejects when a network error is encountered.
fetch promise does not reject on http errrors

Question 2

What is the default request method used by fetch()?

Answer 2

GET

Question 3

How do you specify the request method (GET, POST, etc.) when calling fetch?second

Answer 3

you can add a second parameter after the url which is an object that has a method property with a value of “GET”, “POST”, etc.

fetch( ‘url/.com’, { method: “POST” } );

Question 4

When does React call a component’s componentDidMount method?

Answer 4

componentDidMount is called immediately after a component is mounted.
after the first succesful render( ).

Question 5

Name three React.Component lifecycle methods.

Answer 5

constructor( )
render( )
componentDidMount( )
componentDidUpdate( )
componentWillUnmount( )

Question 6

How do you pass data to a child component?

Answer 6

Props