kb/data/developer.mozilla.org/en-US/docs/Glossary/Constant-0.md

title	chunk	source	category	tags	date_saved	instance
Constant - Glossary | MDN	1/3	https://developer.mozilla.org/en-US/docs/Glossary/Constant	reference	web, html, css, javascript, documentation	2026-05-05T05:28:19.543863+00:00	kb-cron

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1. Glossary
2. Constant

Constant

A constant is a value that the programmer cannot change, for example numbers (1, 2, 42). With variables, on the other hand, the programmer can assign a new value to a variable name already in use. Like variables, some constants are bound to identifiers. For example, the identifier pi could be bound to the value 3.14….

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• See also

See also

• Constant on Wikipedia