Home
Contents
ctype.isdigit
Ctype
Core4 Lua Commands
Platform
Core4 Filesystem
Core4 Lua
Core4 Manager
Core4 Manager
Downloads
Getting started
Installation
Development
Application Notes
Lua
TCP/IP
Core4 Lua Commands
Audio
Cipher
Cipher/Hash
Cipher/MPI
Cipher/PKI
Cipher/SSL
Ctype
Date/Time
Debug
Filer
Graphics
JSON
Kconfig
Math
Mtd16
OS
Sql
String
Table
Tr
Core4 Lua Event System
Bis
Event
Finger
Gpio
Httpd
Httpd/CGI
Keyboard
Magstripe
Mtd16io
Rawio
Touch
V4kf
Websocket
Lua Commands
Coroutine
Debug
File
Global
IO
OS
Package
String
Table
Credits
Credits
SYNOPSIS
result
= ctype.isdigit(
code
)
DESCRIPTION
The
ctype.isdigit
function tests for any decimal-digit character
(0-9)
.
RETURN VALUE
The function returns a boolean indicating if the character test succeeded.
SEE ALSO
ctype
.
isalnum
,
ctype
.
isalpha
,
ctype
.
isascii
,
ctype
.
isblank
,
ctype
.
iscntrl
,
ctype
.
isgraph
,
ctype
.
islower
,
ctype
.
isprint
,
ctype
.
ispunct
,
ctype
.
isspace
,
ctype
.
isupper
,
ctype
.
isxdigit