---
title: Nullish value
slug: Glossary/Nullish
tags:
  - Glossary
  - JavaScript
  - 'Null'
  - Primitive
  - undefined
---
In [JavaScript](/en-US/docs/Glossary/JavaScript), a nullish value is the value which is either {{JSxRef("null")}} or {{JSxRef("undefined")}}. Nullish values are always [falsy](/en-US/docs/Glossary/Falsy).
