What does "boolean" mean in programming?

boolean is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.

Definition

A data type with only two possible values: true or false. Booleans are used in conditions, flags, and logical expressions. Named after mathematician George Boole.

Example

"const isActive: boolean = true;"

Related terms

type
operator
condition

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