This lesson covers the basics of JavaScript, the language that provides interactivity on the web. In this lesson, you'll learn about arrays and loops, which are used to manipulate data.

Pre-lecture quiz This lesson covers the basics of JavaScript, the language that provides interactivity on the web. In this lesson, you'll learn about arrays and loops, which are used to manipulate ...

Functional programming with arrays Although JavaScript’s arrays are very capable out of the box, the functional paradigm improves the clarity and maintainability of array code.