JavaScript Quiz Set 2

What does the addEventListener() method do in JavaScript?

What does the concat() method do in JavaScript?

Which built-in method returns the string representation of the number's value in JavaScript?

What does the isNaN() function in JavaScript do?

Which of the following is true about JavaScript closures?

What does the pop() method do in JavaScript?

Which of the following is a correct way to create a JavaScript object?

What does the splice() method do in JavaScript?

Which of the following is not a valid JavaScript keyword?

What is the result of the following JavaScript code snippet?

console.log(2 + "2");