Learn React Hooks for Frontend Development/

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State Toggling in React Using the useToggle Hook

State Toggling in React Using the useToggle Hook

Learn about the useToggle custom hook, which implements the functionality of toggling boolean states.

We'll cover the following...

Refactoring useToggle hook

In the internal implementation of the useToggle custom hook, the React useState hook is utilized.

Taking one example, we have had this idea of switching a state between true and false for a while. We use it in switchable cases, such as toggling a checkbox, hovering over a text, raising an error, or anything that simulates a light switch. Let's see the image below for one of the usages:

Can we abstract this idea to provide such a boolean state as well as the toggle functionality? Let's start refactoring:

const useToggle = (initialStatus = false) => {
  // The setter function is named 'setStatus' here
  const [status, setStatus] = useState(initialStatus);
  const toggle = () => {
    // We must use 'setStatus' to update the state
    setStatus(prevStatus => !prevStatus); 
  };
  return [status, toggle];
};
Implementation of the useToggle custom hook using useState and a functional updater

In the code above, the useToggle custom hook accepts an optional initialStatus argument, which defaults to false if no value is provided. It uses React’s useState hook to create a status variable along with its corresponding updater function, setStatus. The hook also defines a toggle function that flips the value of status by updating it to the opposite of its previous value. Finally, the hook returns both the current status and the toggle function, allowing components to easily manage and switch a boolean state.

Enhancements to the

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