The Modern JavaScript Bootcamp (2019) - Exploring Another API

The video tutorial guides viewers through making an API request to retrieve country data, focusing on JSON data structure and key properties like A2 code and country name. It explains how to explore API documentation, implement the request, and parse the response. The tutorial concludes with coding a solution to fetch and display the data, emphasizing understanding asynchronous JavaScript.

What type of data does the REST Countries API provide?

• Country codes and currencies

• Weather information

• Historical events

• Celebrity news

Which URL format is used to access all countries' data in the REST Countries API?

• restcountries.edu/rest/Vtwo/all

• restcountries.edu/rest/Vone/all

• restcountries.edu/rest/Vthree/all

• restcountries.edu/rest/Vfour/all

What is the structure of the JSON data returned by the REST Countries API?

• An array of strings

• A nested array

• A single object

• An array of objects

Which property is used to find a country in the JSON data?

• Country name

• Time zone

• A2 code

• Currency symbol

What is the first step in making an HTTP request to the REST Countries API?

• Check the response status

• Parse the JSON data

• Create a new XML HTTP request

• Print the country name

How do you check if the HTTP request was successful?

• By checking if the status is 404

• By checking if the status is 302

• By checking if the status is 200

• By checking if the status is 500

What method is used to parse the JSON response in JavaScript?

• JSON.stringify

• JSON.parse

• JSON.convert

• JSON.decode

Which JavaScript method is used to find a specific country in the array?

• Array.filter

• Array.map

• Array.find

• Array.reduce

What should you do if the HTTP request does not return a status of 200?

• Change the URL

• Retry the request immediately

• Print 'Unable to fetch data'

• Ignore the response

What is the purpose of the 'ready state change' event in an HTTP request?

• To initialize the request

• To handle the response

• To close the connection

• To send the request