Line Comments - language feature

Example from 206 languages: JavaScript, C, Java, PHP, Go, TypeScript, C#, Rust, Swift, Scala, Kotlin, Objective-C, Dart, Solidity, D, Reason, Haxe, Groovy, Pug, F#, Chapel, HCL, Protocol Buffers, JSON5, Yacc, Deno, OpenCL, odin, ANTLR, Delphi, Stata, Flow, V, Verilog, Ballerina, FLUX, Squirrel, Less, Wren, PEG.js, DOT, Lex, Zephir, Jsonnet, Vala, C3, Koka, QML, Bicep, Eve, Halide, Processing, Dafny, mlir, Hack, Taichi, POV-Ray SDL, Ceylon, SystemVerilog, Cue, PowerBuilder, ECL, Scilab, Click, idyll, JAI, Clean, eC, Bison, Ron, Nemerle, Felix, Observable, BCPL, CIL, AspectJ, SuperCollider, nomnoml, Dylan, Xojo, Scroll, SCSS, Flow9, SugarSS, xBase, Modelica, ATS, Veryl, Io, Fantom, Pike, mun-lang, PAWN, OpenSCAD, Lasso, Whiley, P4, Objective C++, JSON with Comments, Cg, Clipper, Angelscript, IGOR Pro, dlvm, Argdown, JADE, Ch, Logos, Objective-J, Harbour, Ligo, Alloy, Volt, CIL, Apex, MQL5, Mask, Croc, DAX, Cypher Query Language, Concise Encoding, Falcon, Spatial, Java Bytecode, OX, spiral, Script.NET, Linden Scripting Language, Not Quite C, DM, LPC, HuJSON, NetLinx, Jule, Game Maker Language, Vale, BETA, Strips, Sophia, Cycript, Slice, CIR, LoomScript, Nymph, Hocon, MiniD, Cell, CartoCSS, Type Language, gentee, Not eXactly C, Adventure Game Studio Script, Maya Embedded Language, KRL, ShaderLab, kai, Frink, tht, silk, Heron, OpenVera, JS++, XBase++, MVEL, NS Basic, Yoix, xxl, winxed, Rescript, Lite-C, neeilang, Language Server Index Format, Judoscript, Rust MIR, FutureBASIC, OEM, SIL, PowerQuery M, owen-lang, Q#, SimCode, Tuple space, Ion, Fable, Pnuts, hilvl, Action Code Script, beads-lang, fizz, flagship, JSL, Operational Control Language, epsilon, verifpal, holyc, OptimJ, Finite State Language, Soy, StruQL, Treelang, ctalk-lang, dslx, CFScript, ddfql, rbscript, sora

// A comment

Example from 98 languages: Python, Perl, Ruby, R, Bash, PowerShell, Elixir, CoffeeScript, Julia, YAML, Nim, TOML, Crystal, GraphQL, awk, Make, Embedded Crystal, fish, Maple, Tcl, starlark, Smali, API Blueprint, M4, Nginx, PRQL, Nearley, SPARQL, MIPS architecture, AMPL, Hjson, Expect, YASnippet, mgmt, GAP, Golo, WDL, AGC, Sage, Boo, CWL, Ring, Logica, Mu, ArkScript, Raku, LiveScript, Reia, Icon, Dockerfile, E, Java Properties, Filebench WML, GDScript, Gherkin, Praat Script, spry, Ragel, Pan, Ren'Py, PicoLisp, Vigil, C shell, Tea, Seed7, UNLAMBDA, Gentoo Ebuild, NestedText, RELAX NG, S-PLUS, BitBake, ldpl, Dc, Unicon, PIC, storyscript, Rc, Claro, Ezhil, LookML, Parser 3, Wart, Recfiles, Yet Another Scripting Language, Alpine Abuild, BuddyScript, blz, Zimpl, FML, Parrot BASIC, rbs, Robots.txt, SubX, Yedalog, Portable Bit Map Format, Netpbm grayscale image format, ppm-format, tremor-query

# A comment

Example from 42 languages: SQL, Lua, Haskell, Ada, PostgreSQL, Elm, MySQL, PureScript, VHDL, Idris, Dhall, Eiffel, MoonScript, Frege, Pig Latin, PL/SQL, Terra, Agda, Applescript, unison, Transact-SQL, LiveCode, Euphoria, Classroom Object Oriented Language, dex, OCL, Opal, SETL, Z, HiveQL, Sather, Grammatical Framework, Aldor, manool, Amazon Redshift, VHDL-AMS, ISETL, omega, Bla, luau, Literate Agda, zephyr-asdl

-- A comment

Example from 15 languages: MATLAB, Prolog, Erlang, Tex, LaTeX, KaTeX, PostScript, GNU Octave, Mercury, Datalog, Oz, Turing, Eclipse Command Language, Charity, Mary

% A comment

Example from 62 languages: Clojure, Racket, Scheme, LLVM IR, Ini, ARM, Red, Fennel, AutoHotkey, Hy, Common Lisp, MUMPS, NetLogo, Logo, carp, Emacs Lisp, AutoIt, x86 Assembly, wisp, datascript, REBOL, CLIPS, LFE, NSIS, NCAR Command Language, Csound, PureBasic, lispyscript, Guile, neut, Netwide Assembler, Augmented Backus-Naur Form, Jasmin, Gerbil Scheme, SMT, SRecode Template, GCC Machine Description, Action!, Project Mentat, KiXtart, EuLisp, carth, taf, Fjölnir, Bel, Boron, PROMAL, Ren, MACRO-10, z80, Atomese, Guix Workflow Language, CLOS, Plot, rosette-lang, lain, stella, Sweet Expressions, ca65 Assembly, Reactive Plan Language, wescheme, turnstile

; A comment

Example from 5 languages: SAS, ABAP, SNOBOL, Refal, ActiveVFP

* A comment

Example from 1 languages: COBOL

MOVE ABC to XYZ *> This is a comment.

Example from 17 languages: Visual Basic, Visual Basic .NET, VBScript, VBA, Monkey, Spin, Brightscript, QB64, PowerBASIC, Xbasic, ThinBasic, StarOffice Basic, Caché Basic, XBLite, WxBasic, Turbo Basic, Creative Basic

' A comment

Example from 1 languages: Fortran

C A comment

Example from 1 languages: HAML

-# A comment

Example from 1 languages: Forth

\ A comment

Example from 1 languages: APL

⍝ A comment

Example from 1 languages: J

NB. A comment

Example from 2 languages: BASIC, Batchfile

REM A comment

Example from 1 languages: Slope

; I am a comment

Example from 1 languages: K

/ A comment

Example from 6 languages: Simula, Structured Query Reporter, BLISS, S-algol, True BASIC, Module Management System

! A comment

Example from 1 languages: TLA

\* A comment

Example from 1 languages: Cyber

-- Counts iterations.

Example from 1 languages: popr

__ A comment

Example from 1 languages: High Level Assembly

// comment

Example from 1 languages: HOPE

--- A comment

Example from 1 languages: Mouse

~ A comment

Example from 1 languages: SAKO

K) A comment

Example from 1 languages: Uniform eXchange Format

#<A comment>

Example from 1 languages: Quaint

;; A comment

Example from 1 languages: Wax

; a comment

Example from 1 languages: Crap

// The same as c

Example from 1 languages: Lexon

COMMENT A comment

Example from 1 languages: T3X

DO END ! Do nothing

Example from 1 languages: GraphQL Schema Definition Language

“”” A comment

Languages with Line Comments include JavaScript, C, Python, Java, Perl, Ruby, PHP, Go, TypeScript, SQL, C#, R, Bash, PowerShell, Rust, Swift, Scala, Lua, MATLAB, Haskell, Kotlin, Clojure, Elixir, CoffeeScript, Objective-C, SAS, Julia, Prolog, Erlang, Dart, COBOL, Visual Basic, Ada, YAML, Solidity, Nim, TOML, Racket, Crystal, Fortran, PostgreSQL, Zig, D, Reason, Elm, MySQL, Scheme, WebAssembly, Haxe, GraphQL, Groovy, awk, Tex, Pug, F#, Chapel, LLVM IR, ClojureScript, HAML, HCL, PureScript, VHDL, Forth, Idris, Protocol Buffers, Ini, Visual Basic .NET, Make, JSON5, APL, Yacc, Deno, ARM, Embedded Crystal, OpenCL, LaTeX, J, Red, fish, Maple, odin, Lean, sed, ANTLR, Tcl, Delphi, Stata, Flow, V, ABAP, KaTeX, ActionScript, Dhall, Verilog, Pony, Fennel, starlark, Ballerina, BASIC, FLUX, AutoHotkey, Hy, Squirrel, PostScript, Less, Wren, Common Lisp, Eiffel, Smali, MUMPS, PEG.js, Cap'n Proto, MoonScript, DOT, API Blueprint, NetLogo, Lex, Zephir, VBScript, Jsonnet, Logo, Frege, Vala, Pig Latin, M4, PL/SQL, C3, Nginx, Batchfile, Koka, GNU Octave, QML, PRQL, carp, Terra, Nearley, Pandas, Bicep, Eve, Halide, Processing, Dafny, SPARQL, Agda, mlir, MIPS architecture, Futhark, VBA, Emacs Lisp, Hack, Taichi, AMPL, POV-Ray SDL, Hjson, Ceylon, Applescript, Expect, QBasic, SystemVerilog, NumPy, YASnippet, progsbase, mgmt, GAP, Cue, PowerBuilder, ECL, Scilab, Click, Cryptol, GLSL, idyll, Slope, HLSL, JAI, AutoIt, x86 Assembly, K, Simula, unison, Clean, Golo, wisp, Transact-SQL, eC, WDL, AGC, Bison, Ron, Sage, Nemerle, Boo, Felix, Mercury, CWL, Ring, Observable, datascript, BCPL, CIL, AspectJ, SuperCollider, Datalog, nomnoml, Logica, Dylan, Xojo, Scroll, Mu, SCSS, REBOL, TLA, Flow9, SugarSS, Oz, ArkScript, Raku, Nit, Gosu, JCL, xBase, Modelica, Shen, ATS, Fancy, Veryl, LiveScript, Io, CLIPS, Fantom, Pike, LFE, mun-lang, NSIS, NCAR Command Language, NewLisp, X10, SourcePawn, PAWN, PL/pgSQL, OpenSCAD, Reia, Turing, Lasso, Icon, Dockerfile, BlitzMax, LilyPond, Whiley, Csound, clay, E, P4, PureBasic, Nix, Java Properties, Objective C++, FoxPRO, lispyscript, Filebench WML, LiveCode, JSON with Comments, Cg, Clipper, Angelscript, IGOR Pro, dlvm, Argdown, JADE, Ch, GDScript, Monkey, Gherkin, Logos, Euphoria, SNOBOL, Guile, Praat Script, spry, BlitzBasic, Objective-J, Classroom Object Oriented Language, Harbour, Ragel, Ligo, Alloy, Volt, CIL, Pan, Apex, Ren'Py, MQL5, Mask, Croc, DAX, Cypher Query Language, Concise Encoding, neut, Falcon, Spatial, JSLT, dex, Java Bytecode, PicoLisp, OX, Gettext Catalog, Vigil, C shell, muPad, OCL, Tea, Seed7, spiral, Netwide Assembler, UNLAMBDA, Script.NET, Augmented Backus-Naur Form, Linden Scripting Language, Cyber, popr, Opal, High Level Assembly, Gentoo Ebuild, Not Quite C, DM, NestedText, LPC, HuJSON, NetLinx, Jule, Cwerg, Eclipse Command Language, FloScript, Jasmin, RELAX NG, S-PLUS, Game Maker Language, Gerbil Scheme, BitBake, ldpl, SETL, HOPE, Z, Vale, Dc, Spin, BETA, Strips, Sophia, Structured Query Reporter, Unicon, Cycript, SMT, Redcode, PIC, storyscript, Slice, CIR, HiveQL, LoomScript, Sather, Nymph, Hocon, MiniD, Rc, Sieve mail filtering language, Claro, Cell, Ezhil, CartoCSS, pointless, Grammatical Framework, LookML, PEG, Refal, SRecode Template, Type Language, gentee, Brightscript, Not eXactly C, Adventure Game Studio Script, Maya Embedded Language, Savi, KRL, GCC Machine Description, ShaderLab, Charity, BLISS, Parser 3, kai, Action!, Frink, QB64, Mouse, tht, SAKO, HXML, Aldor, manool, S-algol, Wart, Project Mentat, Uniform eXchange Format, silk, Heron, Recfiles, KiXtart, Yet Another Scripting Language, OpenVera, Alpine Abuild, JS++, XBase++, MVEL, PowerBASIC, parasail, NS Basic, Yoix, xxl, Mary, winxed, Rescript, EuLisp, Aardvark, Quaint, Easytrieve, Lite-C, carth, neeilang, Language Server Index Format, Rita, taf, Judoscript, Fjölnir, Bel, Rust MIR, Pawn, Wax, Crap, Amazon Redshift, Xbasic, Boron, FutureBASIC, PROMAL, OEM, SIL, PowerQuery M, VHDL-AMS, owen-lang, Q#, SimCode, Tuple space, BuddyScript, True BASIC, Ion, blz, Fable, Ren, ISETL, Pnuts, MACRO-10, omega, hilvl, Action Code Script, AmbientTalk, z80, ActiveVFP, Atomese, beads-lang, fizz, flagship, Guix Workflow Language, JSL, Operational Control Language, CLOS, Boogie, epsilon, Lexon, Plot, PromQL, rosette-lang, Spice, Zimpl, ThinBasic, boa, lain, stella, Sweet Expressions, T3X, verifpal, holyc, StarOffice Basic, FML, Caché Basic, OptimJ, Bla, luau, Finite State Language, Module Management System, Soy, XBLite, Parrot BASIC, ca65 Assembly, GraphQL Schema Definition Language, Literate Agda, rbs, Reactive Plan Language, WxBasic, Robots.txt, StruQL, SubX, Yedalog, Turbo Basic, Treelang, ctalk-lang, dslx, Portable Bit Map Format, Netpbm grayscale image format, ppm-format, PacmanConf, PkgConfig, USD, wescheme, CFScript, ddfql, turnstile, Creative Basic, tremor-query, Lighttpd configuration file, rbscript, sora, zephyr-asdl

Languages without Line Comments include HTML, CSS, XML, JSON, Mathematica, Markdown, Pascal, OCaml, SPSS, Smalltalk, SVG, Standard ML, XQuery, ML, Wolfram Language, Regular Expressions, Modula-2, Rexx, OWL, Modula-3, Object Pascal

View all concepts with or missing a hasLineComments measurement

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