MASTER IN JAVASCRIPT Assessment

Test your knowledge with this 10-question quiz. Each question has 4 options.

Score 50% or more to pass. Good luck!

1. What is JavaScript primarily used for?

Providing structure to web pages Adding styling to web pages Adding behavior and interactivity to web pages Defining database schemas

2. Which of these is a key feature introduced in ES6+?

var keyword for variables Callback functions The let and const declarations XMLHttpRequest for API calls

3. Which array method is used to transform each element in an array and return a new array?

forEach() filter() map() reduce()

4. What does the 'await' keyword do?

Pauses the execution of an async function until a Promise is resolved Catches errors in a Promise chain Declares an asynchronous function Immediately invokes a function expression

5. Which browser API is recommended for making HTTP requests in modern JavaScript?

XMLHttpRequest Ajax Fetch API Axios (note: a library, not a native API)

6. What is a Closure in JavaScript?

A function passed as an argument to another function A function that is executed immediately after being defined A function that has access to its own scope, the outer function's scope, and the global scope A special keyword for defining classes

7. Which tool is commonly used for transpiling modern JavaScript code to be compatible with older browsers?

Webpack npm Babel ESLint

8. Which concept involves creating functions that either take other functions as arguments or return functions?

Object-Oriented Programming Higher-Order Functions Async/Await DOM Traversal

9. What is the primary purpose of the DOM?

To style web page elements To provide an object-oriented representation of the document structure for manipulation To manage asynchronous operations To store data on the client-side

10. What is the minimum score needed to pass the JavaScript certification according to the course?

40% 50% 60% 70%