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7 docs tagged with "hooks"

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useCallback Hook Concept

The useCallback hook is a built-in React hook that allows you to memoize functions in functional components. It is particularly useful for optimizing performance by preventing unnecessary re-renders of child components that depend on callback functions.

useContext Hook Concept

The useContext hook is a built-in React hook that allows you to consume context values in functional components. It provides a way to access data from a context provider without having to pass props down through multiple levels of the component tree.

useEffect Hook Concept

The useEffect hook is a built-in React hook that allows you to perform side effects in functional components. It serves as a combination of lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount in class components.

useMemo Hook Concept

The useMemo hook is a built-in React hook that allows you to memoize expensive calculations or computations in functional components. It helps optimize performance by preventing unnecessary recalculations of values that depend on certain inputs.

useReducer Hook Concept

The useReducer hook is a built-in React hook that provides an alternative way to manage state in functional components, especially when dealing with complex state logic or multiple related state variables.

useRef Hook Concept

The useRef hook is a built-in React hook that allows you to create mutable references to DOM elements or any other value that persists across renders in functional components.

useState Hook Concept

The useState hook is a built-in React hook that allows functional components to manage state. It provides a way to add stateful logic to functional components, enabling them to hold and update data over time.