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Now, this course section is an optional one.

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This course section will be a refresher on ReactJS,

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and you can skip it if you already have

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a solid ReactJS foundation,

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for example because you took

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my React - The Complete Guide course.

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In this module,

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I'm going to make sure we're all on the same page

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by again exploring what exactly React is and why we use it,

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by diving into some Core React Concepts:

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Components, Props, and State.

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And we're going to build a full project

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and explore some advanced concepts like Effects and Context.

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Now, we're going to use functional components only, here.

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We're going to use React Hooks,

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and you're going to learn what that is in this module.

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And we're going to use these concepts

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throughout the rest of this course.

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So don't skip this module,

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if you don't know these concepts yet,

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or if you're not sure about them,

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if it's been some time since you last worked with React.

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But absolutely do feel free to skip this module,

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if you do know these concepts,

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because you won't learn anything about NextJS here.

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It's really just about React.

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And we're going to start with NextJS,

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and its Core Concepts in the section after this section.