🚀 Are you ready to test your JavaScript knowledge? Check out these 10 multiple-choice questions and see how well you fare! JavaScript is a fundamental language for web development, and these questions cover a range of topics, from variables and operators to loops and event handling. Challenge yourself and feel free to share your results in the comments below. Happy coding! 💻🤓 #JavaScript #WebDevelopment #CodingQuiz #Programming
What is JavaScript primarily used for in web development?
a) Styling web pages
b) Creating interactive and dynamic web content
c) Defining the structure of web pages
d) Storing data on the server
Answer: b) Creating interactive and dynamic web content
Which of the following is not a valid way to declare a variable in JavaScript?
a) var myVariable = 10;
b) let myVariable = 10;
c) const myVariable = 10;
d) myVariable = 10;
Answer: d) myVariable = 10;
What is the purpose of the “if” statement in JavaScript?
a) To create loops
b) To define a function
c) To make decisions in code based on conditions
d) To include external JavaScript files
Answer: c) To make decisions in code based on conditions
Which operator is used to compare the value and type of two variables in JavaScript?
a) ==
b) ===
c) !=
d) !==
Answer: b) ===
What is the JavaScript function that is used to print something to the console?
a) print()
b) console.print()
c) log()
d) display()
Answer: c) log()
What does the “DOM” stand for in JavaScript?
a) Document Object Model
b) Data Object Model
c) Display Object Model
d) Document Oriented Model
Answer: a) Document Object Model
Which JavaScript function is used to add a new element to an HTML document?
a) createNode()
b) appendChild()
c) addElement()
d) createElement()
Answer: d) createElement()
What does the “JSON” acronym stand for in JavaScript?
a) JavaScript Object Notation
b) JavaScript Object Navigator
c) JavaScript Oriented Network
d) JavaScript Output Notation
Answer: a) JavaScript Object Notation
Which JavaScript loop executes a block of code as long as a specified condition is true?
a) for loop
b) while loop
c) do…while loop
d) switch loop
Answer: b) while loop
What is the purpose of the JavaScript “addEventListener” method?
a) To create arrays
b) To manipulate CSS styles
c) To handle events like clicks and keypresses on HTML elements
d) To define custom functions
Answer: c) To handle events like clicks and keypresses on HTML elements
