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+
+
+# isConstantcase
+
+> Test if a value is a constantcase string.
+
+
+
+## Usage
+
+```javascript
+var isConstantcase = require( '@stdlib/assert/is-constantcase' );
+```
+
+#### isConstantcase( value )
+
+Tests if a `value` is a constantcase `string`.
+
+```javascript
+var bool = isConstantcase( 'BEEP_BOOP' );
+// returns true
+
+bool = isConstantcase( 'BEEP and BOOP' );
+// returns false
+```
+
+
+
+
+
+
+
+## Notes
+
+- The function validates that a `value` is a `string`. For all other types, the function returns `false`.
+
+
+
+
+
+
+
+## Examples
+
+
+
+```javascript
+var isConstantcase = require( '@stdlib/assert/is-constantcase' );
+
+var bool = isConstantcase( 'BEEP_BOOP' ) );
+// returns true
+
+bool = isConstantcase( 'BEEP and BOOP' ) );
+// returns false
+
+bool = isConstantcase( 'BEEP_BOOP_BEEP' ) );
+// returns true
+
+bool = isConstantcase( 'b' ) );
+// returns true
+
+bool = isConstantcase( 'B' ) );
+// returns true
+
+bool = isConstantcase( '!' ) );
+// returns false
+
+bool = isConstantcase( 'beep boop' ) );
+// returns false
+```
+
+
+
+
+
+* * *
+
+
+
+## CLI
+
+
+
+### Usage
+
+```text
+Usage: is-constantcase [options] []
+
+Options:
+
+ -h, --help Print this message.
+ -V, --version Print the package version.
+ --split sep Delimiter for stdin data. Default: '/\\r?\\n/'.
+```
+
+
+
+
+
+
+
+
+
+### Notes
+
+- If the split separator is a [regular expression][mdn-regexp], ensure that the `split` option is either properly escaped or enclosed in quotes.
+
+ ```bash
+ # Not escaped...
+ $ echo -n $'beEp booP\nFOO' | is-constantcase --split /\r?\n/
+ # Escaped...
+ $ echo -n $'beEp booP\nFOO' | is-constantcase --split /\\r?\\n/
+ ```
+
+- The implementation ignores trailing delimiters.
+
+
+
+
+
+
+
+### Examples
+
+```bash
+$ is-constantcase beepboop
+true
+```
+
+To use as a [standard stream][standard-streams],
+
+```bash
+$ echo -n 'beep Boop' | is-constantcase
+false
+```
+
+By default, when used as a [standard stream][standard-streams], the implementation assumes newline-delimited data. To specify an alternative delimiter, set the `split` option.
+
+```bash
+$ echo -n 'beepBoop\tBEEP_BOOP' | is-constantcase --split '\t'
+false
+true
+```
+
+
+
+
+
+
+
+
+
+
+
+