Introduction

• Flutter has many widgets in its library, and if you take a look at every widget's properties you'll most probably find the key parameter in all of those widgets.
• Most of the beginners who started learning Flutter don't know about Keys. And if they do, they don't know how to use them or where to put them.
• It's because Keys has very few use cases or you can say their use is less common.
• In this blog, I will try to explain the concept of Keys, and different types of Keys, Where to use Keys, and How to use them.

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