#20 : Lists and keys in react | Why does react need a unique key | List rendering in react

In this video, you will learn to render list in react js also you will be able to understand why key is required in list and what will happen if key is not passed in the list also why key should be unique in list in react js and how list iteration work in react js also how you can pass key value to another component in react.

You will learn:
What is lists and keys in react?
Why does react needa unique key?
How do I render a key in react JS?
How do I iterate a list in react JS?
Delete item in list
How to pass index as key in react?