JS Flashcard

Front

What is the purpose of a Promise in JavaScript?

Back

To handle asynchronous operations

Front

What is the state of a Promise when it is created?

Back

Pending

Front

Which method is used to handle a successful Promise resolution? Options: catch(), finally(), then(), reject()

Back

then()

Front

Which method is used to handle a rejected Promise? Options: then(), finally(), catch(), resolve()

Back

catch()

Front

What does the 'async' keyword do in a function declaration?

Back

Makes the function return a Promise

Front

What does the 'await' keyword do?

Back

Waits for a Promise to resolve

Front

What is the JavaScript Event Loop responsible for?

Back

Handling asynchronous callbacks

Front

Where are asynchronous callbacks placed before they are executed?

Back

Callback Queue

Front

What is the 'fetch' API used for?

Back

Making network requests

Front

What does the 'fetch' API return?

Back

A Promise