@stdlib/assert-is-capitalized NPM

isCapitalized

Test if a value is a string having an uppercase first character.

Installation

npm install @stdlib/assert-is-capitalized

Usage

var isCapitalized = require( '@stdlib/assert-is-capitalized' );

isCapitalized( value )

Tests if a value is a string having an uppercase first character.

var bool = isCapitalized( 'Every noble work is at first impossible.' );
// returns true

bool = isCapitalized( 'HELLO WORLD!' );
// returns true

bool = isCapitalized( 'salt and light' );
// returns false

Notes

The function validates that a value is a string. For all other types, the function returns false.

Examples

var isCapitalized = require( '@stdlib/assert-is-capitalized' );

var bool = isCapitalized( 'Hello' );
// returns true

bool = isCapitalized( 'HELLO' );
// returns true

bool = isCapitalized( '' );
// returns false

bool = isCapitalized( 'hello' );
// returns false

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.