How to add a Dark Mode Toggle in React | HackerNoon

'How to add a Dark Mode Toggle in React' react darkmode

. First, I set up the basic JSX, the local state, and a variable to hold the theme we get from localStorage:

When a user clicks the toggle, I want the theme on the page to change and the toggle to change with it. I added the importedfrom the local state to a handleOnClick function. You can see where it is passed to the clickable part of the toggle in the JSX above.

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