what is the difference between x++ and ++x?

The var statement is used to:

Which primitive value exist in JavaScript?

Which statement loops through an array?

You use the Math.pow() method to:

Value of ('dog'.length)?

Which statement can take a single expression as input and then look through a number of choices until one that matches that value is found?

What is the output of this code? let x = 6 + 3 + '3'; console.log(x);

If your app receives data from a third-party API, which HTTP response header must the server specify to allow exceptions to the same-origin policy?

What is the difference between the map() and the forEach() methods on the Array prototype?

How do you remove the property name from this object? const foo = { name: 'Albert', };