Empty string: Difference between revisions

Revision as of 17:44, 7 February 2025

Revision as of 00:31, 11 August 2025

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{{Short description|Unique string of length zero}}

{{Refimprove|date=November 2009}}

In [[formal language theory]], the '''empty string''', oralso known as the '''empty word''' or '''null string''', is the unique [[String (computer science)|string]] of length zero.

==Formal theory<span class="anchor" id="nullable symbol"></span>==