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Component

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A reusable, self-contained piece of UI

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Props

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Read-only properties passed from a parent component to a child component

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State

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Data that a component manages and can change over time

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useState

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A Hook that lets you add state to functional components

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useEffect

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A Hook that lets you perform side effects in functional components

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JSX

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A syntax extension for JavaScript that looks like HTML

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Conditional Rendering

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Rendering different UI based on certain conditions

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Component Lifecycle

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The sequence of mounting, updating, and unmounting of components

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Virtual DOM

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A programming concept where a virtual representation of a UI is kept in memory and synced with the "real" DOM

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Hooks

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Functions that let you "hook into" React state and lifecycle features from function components