Quiz - JavaScript Fundamentals | Lancecourse

JavaScript Fundamentals

A quiz to test your knowledge of JavaScript basics.

Question 1 Which data type is used to represent true or false values in JavaScript?: Boolean String Integer Object

Question 2 What will the following code output? console.log(typeof "Hello");: string string value number text

Question 3 What is the keyword used to declare a variable that cannot be reassigned?: const let var immutable

Question 4 Which of the following is NOT a JavaScript data type?: ArrayList Object Function Boolean

Question 5 Which symbol is used to comment out a single line in JavaScript?: // /* # &&

Question 6 Which of the following keywords is used to declare a variable that can be reassigned?: let const static various

Question 7 What is the purpose of the document.getElementById() method?: To retrieve an element by its ID To create a new HTML element To change the ID of an element None of the above

Question 8 What does the fetch() function do in JavaScript?: Sends and receives data asynchronously Creates a new HTML element Writes data to the console None of the above

Question 9 Which of the following is a way to include JavaScript in an HTML document?: <script> tag <javascript> tag <js> tag <code> tag

Question 10 What does HTML stand for?: Hyper Text Markup Language High Text Markup Language Hyperlink and Text Markup Language None of the above

Answer all the questions then submit.