JavaScript Multiple Choice Questions (MCQ) Online Test #13

Which JavaScript operator is used to compare two values for equality?

How is the remainder of a division operation obtained in JavaScript?

What will be the output of the following code snippet?

How can you change the style of an element with the ID myElement using JavaScript?

What is the purpose of the Array.prototype.map() method?

How can you ensure that a block of code executes after a Promise is resolved or rejected?

Which method is used to store data that will be available for the duration of a single page session in JavaScript?

How can you identify and fix memory leaks in JavaScript applications?

How can you ensure that tests in Jest run in a clean state?