Home : Technical Terms : Null Definition

Null

When a variable has no value, it considered to be null. Having a null value is different than having a value of 0, since 0 is an actual value. However, when used in a boolean test, both null and zero result in a FALSE value. Programmers often use boolean tests to determine whether a variable has been given a value or not.

Cite this definition:

https://techterms.com/definition/null

TechTerms - The Tech Terms Computer Dictionary

This page contains a technical definiton of Null. It explains in computing terminology what Null means and is one of many technical terms in the TechTerms dictionary.

All definitions on the TechTerms website are written to be technically accurate but also easy to understand. If you find this Null definition to be helpful, you can reference it using the citation links above. If you think a term should be updated or added to the TechTerms dictionary, please email TechTerms!