Integers - language feature

Example from JavaScript, JSON, TypeScript, Julia, JSON5, JSONiq, JSON with Comments, Superjson, Hocon, Jsonnet, Uniform eXchange Format, Static Typescript:

80766866

Example from Java, AspectJ, Pizza, Deesel:

// 0|[1-9][0-9_]*[lL]?

Example from C, C++, C#, Objective-C, Tick C, cooC, Real-Time Concurrent C:

int pldb = 80766866;

Example from Python, Ruby:

pldb = 80766866

Example from SQL, Eiffel, Transact-SQL:

-- [0-9]+

Example from Perl:

# \d+(_\d+)*

Example from MySQL:

-- [0-9]+(?=[^0-9a-z$_\u0080-\uffff])

Example from Go:

i, j := 42, 2701

Example from Swift:

// [0-9][0-9_]*

Example from Ada:

-- [0-9_]+

Example from Haskell:

-- \d(_*\d)*

Example from Prolog, CLPR, GAEA, Progol:

% \d\d?\'[a-zA-Z0-9]+

Example from Bash:

PLDB=80766866

Example from Clojure, Hy, Fennel:

; -?\d+

Example from Elixir:

# \d(_?\d)*

Example from Erlang:

% [+-]?(?:[2-9]|[12][0-9]|3[0-6])#[0-9a-zA-Z]+

Example from Verilog:

// ([0-9]+)|(\'d)[0-9]+

Example from Reason:

// \d[\d_]*

Example from awk, CoffeeScript, bawk:

# [0-9]+

Example from F#:

// \d[\d_]*[uU]?[yslLnQRZINGmM]?

Example from Elm:

-- _?\d+

Example from D:

// (0|[1-9][0-9_]*)([LUu]|Lu|LU|uL|UL)?

Example from VHDL:

-- \d{1,2}#[0-9a-f_]+#?

Example from PostScript:

% (\-|\+)?[0-9]+(?=[()<>\[\]{}/%\s])

Example from Chapel, Zephir, QML, SuperCollider, POV-Ray SDL, Alloy, Koka, Whiley:

// [0-9]+

Example from Forth:

\ (\#|%|&|\-|\+)?[0-9]+

Example from VBScript, Monkey:

' [0-9]+

Example from Applescript:

-- [-+]?\d+

Example from Idris, Agda:

-- \d+

Example from Protocol Buffers:

// \d+[LlUu]*

Example from ABAP:

* [0-9]+

Example from AMPL:

# \d+([eE][+-]?\d+)?

Example from AutoIt, AutoHotkey:

; \d+

Example from GNU Octave:

% \d+

Example from TOML:

# \d{4}-\d{2}-\d{2}(?:T| )\d{2}:\d{2}:\d{2}(?:Z|[-+]\d{2}:\d{2})

Example from Icon, Unicon:

# \b([+-]?[0-9]+[KMGTPkmgtp]?)\b

Example from J:

NB. _?\d+

Example from Scilab, Io, Modelica, Linden Scripting Language:

// \d+

Example from Boo:

# \d+

Example from Ceylon:

// \d{1,3}(_\d{3})+[kMGTP]?

Example from SPARQL:

# [+\-]?\d+

Example from SystemVerilog:

// ([1-9][_0-9]*)?\s*\'[sS]?[dD]\s*[xXzZ?0-9][_xXzZ?0-9]*

Example from MiniD, Croc:

// ([0-9][0-9_]*)(?![.eE])

Example from C3:

int x = 314159;

Example from LiveScript:

# [0-9]+(~[0-9a-z]+)?(?:[a-zA-Z_]+)?

Example from Pig Latin:

-- [0-9]+L?

Example from Golo:

# -?\d[\d_]*

Example from Ion:

// http://amzn.github.io/ion-docs/docs/spec.html
null.int   // A null int value
0          // Zero.  Surprise!
-0         //   ...the same value with a minus sign
123        // A normal int
-123       // Another negative int
0xBeef     // An int denoted in hexadecimal
0b0101     // An int denoted in binary
1_2_3      // An int with underscores
0xFA_CE    // An int denoted in hexadecimal with underscores
0b10_10_10 // An int denoted in binary with underscores

Example from K:

/ [0-9]+[ihtuv]

Example from Ragel:

# [+-]?[0-9]+

Example from Felix:

// (0|[1-9][0-9_]*)([tTsSiIlLvV]|ll|LL|([iIuU])(8|16|32|64))?

Example from GDScript:

# \d+j?

Example from Cyber:

count = 0

Languages with Integers include Java, JavaScript, C, Python, SQL, C++, Perl, C#, Ruby, MySQL, JSON, Go, Swift, Ada, Haskell, TypeScript, Prolog, Bash, Clojure, Objective-C, Mathematica, Elixir, Erlang, Julia, ActionScript, Verilog, Reason, awk, CoffeeScript, F#, OCaml, Elm, Eiffel, D, GraphQL, VHDL, XQuery, PostScript, Chapel, WebAssembly, Forth, VBScript, Applescript, Idris, Protocol Buffers, ABAP, AMPL, sed, Monkey, BlitzBasic, Agda, Coq, AutoIt, Zig, GNU Octave, Lean, TOML, Hy, Zephir, Icon, J, QML, Scilab, Io, IDL, Pony, Boo, EDN, QBasic, Ceylon, SPARQL, JSON5, Turtle, F*, SystemVerilog, Opa, SuperCollider, Cython, PL/pgSQL, POV-Ray SDL, MiniD, C3, ClojureScript, Puppet, Alloy, Ioke, LiveScript, Modelica, AutoHotkey, Pig Latin, Thrift, Maxima, Transact-SQL, AspectJ, Croc, Golo, Ion, Fennel, K, SourcePawn, Xtend, janet, Ragel, Koka, HLSL, Unicon, HOPE, Gosu, GLSL, Felix, Futhark, Jule, Pizza, chaiscript, Cryptol, BlitzMax, Linden Scripting Language, GDScript, JSONiq, Nit, clay, Meson, Whiley, Stan, Fancy, OpenEdge ABL, JSON with Comments, Shen, Superjson, Earl Grey, Cyber, monte, Redcode, Hocon, JSLT, Jsonnet, Pawn, JS++, Uniform eXchange Format, parasail, Kal, BALGOL, Notation3, Easytrieve, FloScript, Boogie, Urbiscript, CLPR, wah, nimrod, Flatline, AmbientTalk, CBOR data definition language, Procfile, PromQL, hecl, boa, Spice, SARL, Deesel, RQL, juttle, RAISE Specification Language, Friendly Enough Expression Language, Tick C, cooC, Real-Time Concurrent C, GAEA, bawk, Static Typescript, Progol

Languages without Integers include progsbase