Test if a value is an uppercase string.
var isUppercase = require( '@stdlib/assert/is-uppercase' );Tests if a value is an uppercase string.
var bool = isUppercase( 'HELLO' );
// returns true
bool = isUppercase( 'salt and light' );
// returns false- The function validates that a
valueis astring. For all other types, the function returnsfalse.
var isUppercase = require( '@stdlib/assert/is-uppercase' );
var bool = isUppercase( 'HELLO' );
// returns true
bool = isUppercase( '' );
// returns false
bool = isUppercase( 'Hello' );
// returns false
bool = isUppercase( 'hello' );
// returns falseUsage: is-uppercase [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 booP\nFOO' | is-uppercase --split /\r?\n/ # Escaped... $ echo -n $'beEp booP\nFOO' | is-uppercase --split /\\r?\\n/
-
The implementation ignores trailing delimiters.
$ is-uppercase BEEP
trueTo use as a standard stream,
$ echo -n 'boop' | is-uppercase
falseBy 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\tBoop' | is-uppercase --split '\t'
true
false@stdlib/assert/is-lowercase: test if a value is a lowercase string.@stdlib/assert/is-string: test if a value is a string.