# Introduction In this lab, you will learn how to update MongoDB arrays using various techniques, including pushing new elements, pulling array items, updating array elements, adding to array sets, and removing duplicates. The lab covers practical examples and step-by-step instructions to help you master the management of arrays in your MongoDB databases. You will explore how to dynamically modify document data and maintain the integrity of your array-based structures. The lab starts by demonstrating how to add new elements to arrays using the `$push` operator. It then covers the `$pull` operator, which allows you to remove specific items from arrays. Additionally, you will learn how to update individual array elements, add elements to array sets, and remove duplicates from arrays. These techniques will equip you with the necessary skills to effectively work with arrays and embedded documents in your MongoDB applications.
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