Booleans - language feature

Example from 2 languages: Go, Wa-lang

c := true

Example from 1 languages: JSON

false

Example from 1 languages: TypeScript

const result = true

Example from 1 languages: Lua

true
false

Example from 1 languages: Nim

let res = true

Example from 1 languages: Chapel

bool true false

Example from 1 languages: Gleam

let is_awesome = True

Example from 1 languages: MoonBit

let a = true

Example from 1 languages: Slope

(define open? #t)

Example from 1 languages: Jule

true false

Example from 1 languages: Bel

; The symbol nil represents falsity as well as the empty list.
; The symbol t is the default representation for truth, but any object other than nil also counts as true.

Example from 1 languages: Ion

null.bool
true
false

Example from 1 languages: opengraph

true
false
1
0

Languages with Booleans include JavaScript, C, Python, Java, Ruby, PHP, Go, JSON, SQL, TypeScript, C#, R, Rust, Swift, Scala, Lua, Kotlin, CoffeeScript, Elixir, Julia, Dart, Solidity, COBOL, Visual Basic, Pascal, Nim, Ada, PostgreSQL, Crystal, MySQL, Reason, GraphQL, Chapel, Groovy, OCaml, F#, Gleam, HCL, Liquid, MongoDB, Protocol Buffers, Visual Basic .NET, C3, ANTLR, F*, ABAP, Wa-lang, EDN, NetLogo, MoonScript, Janet, PL/SQL, CouchDB, Nearley, SPARQL, MoonBit, UML, Modula-2, Twig, C2, progsbase, TLA+, Click, idyll, Slope, eC, Simula, wisp, Transact-SQL, Isabelle, Modula-3, ArkScript, Oz, MariaDB, XL, Lasso, Jule, Angelscript, spry, BlitzBasic, Classroom Object Oriented Language, Ligo, Concise Encoding, Apex, Augmented Backus-Naur Form, JSON Lines, Jison Lex, Bluespec, Sophia, Spin, Cell, Ezhil, Jupyter Notebook, Action!, S-algol, Aardvark, JS++, Speedie, carth, Bel, Amazon Redshift, PROMAL, PowerQuery M, Uniform eXchange Format, C/AL, blockml, Ion, Arden syntax, Ren, fizz, BALGOL, Caché Basic, PLZ, bag-format, Freefem, llhd, Mscgen, McKeeman Form, opengraph, Friendly Enough Expression Language

Languages without Booleans include Markdown, Ini, SQLite, Lil, Veryl, PLY, mmCIF, SAT

View all concepts with or missing a hasBooleans measurement