AJAX

Question 1

What does AJAX stand for?

Answer 1

Asynchronous JavaScript and XML (we often use JSON instead of XML nowadays)

Question 2

What is the primary purpose of AJAX?

Answer 2

It allows JavaScript to make HTTP requests and use the results without redirecting the browser

Question 3

What are the disadvantages of using AJAX?

Answer 3

• Need to manage history, back button, bookmarks in JS
• security (browsers heavily restrict AJAX to prevent abuse)
• uses more HTTP requests, CPU, and RAM

Question 4

What does fetch() return?

Answer 4

Promise

Question 5

What does fetch().then() return?

Answer 5

Promise

Question 6

What does fetch().then().then() return?

Answer 6

Promise