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Closure - Glossary | MDN 1/3 https://developer.mozilla.org/en-US/docs/Glossary/Closure reference web, html, css, javascript, documentation 2026-05-05T05:27:40.167324+00:00 kb-cron

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  1. Glossary
  2. Closure

Closure

In computer programming, a closure is a technique for implementing lexically scoped name binding in a language with first-class functions. In JavaScript, a function creates a closure context. As shown by the following code, the inner function maintains access to the count variable even after createCounter() has finished executing.

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