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Array Methods

Learn about more of JavaScript’s built-in tools and shortcuts for working with arrays.

Search and Locate

Learn how to check if an array contains a value, and, if it does, how to find its position in the array.

Updating the Inventory

Learn how to add, remove, and alter elements in an array.

Apply Functions

Learn about arrow functions and start using them to transform arrays.

Ship It

In these final puzzles, you’ll use code to figure out how much it costs to buy and ship everything inside of your shopping cart.