Test whether a string contains only alphanumeric characters.
var isAlphaNumeric = require( '@stdlib/assert/is-alphanumeric' );Tests whether a string contains only alphanumeric characters.
var bool = isAlphaNumeric( 'abc0123456789' ); // returns true- For non-string values, the function returns
false. - Alphanumeric is defined as the characters
a-zA-Zand the numeric characters0-9.
var isAlphaNumeric = require( '@stdlib/assert/is-alphanumeric' ); var out = isAlphaNumeric( 'abs0123456789' ); // returns true out = isAlphaNumeric( '0xffffff' ); // returns true out = isAlphaNumeric( '' ); // returns false out = isAlphaNumeric( 123 ); // returns falseUsage: is-alphanumeric [options] [<string>] Options: -h, --help Print this message. -V, --version Print the package version. --split sep Delimiter for stdin data. Default: '/\\r?\\n/'. -
If the split separator is a regular expression, ensure that the
splitoption is either properly escaped or enclosed in quotes.# Not escaped... $ echo -n $'beep\n01abc23456789' | is-alphanumeric --split /\r?\n/ # Escaped... $ echo -n $'beep\n01abc23456789' | is-alphanumeric --split /\\r?\\n/
-
The implementation ignores trailing delimiters.
$ is-alphanumeric 01abc23456789 trueTo use as a standard stream,
$ echo -n '0123456789' | is-alphanumeric trueBy default, when used as a standard stream, the implementation assumes newline-delimited data. To specify an alternative delimiter, set the split option.
$ echo -n 'beep\t01abc23456789' | is-alphanumeric --split '\t' false true@stdlib/assert/is-digit-string: test whether a string contains only numeric digits.