A higher order function is a function that takes one or more functions as arguments, or returns a function as its result.

JavaScript to redirect from one website to another. The window.location object can be used to get the current page address and redirect to a new page.

The preventDefault() method cancels the event if it is cancelable, meaning that the default action that belongs to the event will not occur.

The spread and rest operators us the same syntax (...) three dots.

Arrow functions are modern JS syntax to declare a function, which is introduced in ES6. Besides a shortes syntax, below are the properties:

In modern JavaScript projects you can split the code across multiple JavaScript files and its called modules.

A module is a file, to make import/export work, browsers need

Scope is the place where you can access the values of our variables or functions in our code.

Syntax error is the error occurs when you use a predefined syntax incorrectly.