This post explains how to create a custom useDebounceCallback hook in React, detailing the importance of closures and the callback reference pattern. Examples illustrate how closures capture variables from outer scopes, and how useRef helps in maintaining the latest callback function in React's functional components.
Table of contents
Permalink IntroductionPermalink What is a closure?Permalink Closures and ReactPermalink The callback ref patternPermalink But Tiger, why is it not closing over .current field?Permalink Recap with final examplePermalink By Value vs By ReferenceSort: