/**
* Capitalize a string. (Convert initial string to uppercase.)
* @function lib.string.capitalize
* @param {string} string - String to convert.
* @returns {string} - converted string.
* @author Taka Okunishi
*
*/
module.exports = function (string) {
if (!string) {
return string;
}
return string.substr(0, 1).toUpperCase() + string.substr(1);
};