value to test
boolean indicating whether a value is a string with an uppercase first character
var bool = isCapitalized( 'Hello' );
// returns true
var bool = isCapitalized( 'WORLD' );
// returns true
var bool = isCapitalized( '!' );
// returns false
var bool = isCapitalized( 'salt and light' );
// returns false
Tests if a value is a string having an uppercase first character.