Javascript-Data-Structures-Objects-and-Arrays In the previous lessons we have gone over data types and various ways to work with them. data types are just the basic building blocks of programming and ...

The Array Object in JavaScript has a built-in reduce method that iterates over each value in an array and returns a value. It is very useful when calculating sums.

Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

Learn about JavaScript Object Notation and JSON objects and arrays, including how and why they're used. Also, find out how JSON compares to HTML and XML.