Use State

The useState Hook

Master useState, the Hook that adds local state to function components, including initial values, updater functions, and functional updates.

React Cheat Sheet

React hooks, components, lifecycle methods, and common patterns.

What Are the Rules of Hooks and Why Do They Exist?

The Rules of Hooks state that hooks must only be called at the top level of a React function component or custom hook, never inside loops, conditions, or neste…

Controlled vs Uncontrolled Components: What Is the Difference?

A controlled component has its form value driven entirely by React state, with every keystroke updating state via onChange and the state value fed back into th…