assert(!`alpha`.isProperNameCapitalized); assert(!`alpha centauri`.isProperNameCapitalized); assert(!`ALPHA`.isProperNameCapitalized); assert(!`ALPHA CENTAURI`.isProperNameCapitalized); assert(!`aThing`.isProperNameCapitalized); assert(`Alpha`.isProperNameCapitalized); assert(`Alpha Centauri`.isProperNameCapitalized); assert(`11104 Airion`.isProperNameCapitalized); assert(`New York City`.isProperNameCapitalized); assert(`1-Hexanol`.isProperNameCapitalized); assert(`11-Hexanol`.isProperNameCapitalized); assert(`22nd Army`.isProperNameCapitalized); assert(!`22nd army`.isProperNameCapitalized); assert(`2nd World War`.isProperNameCapitalized); assert(`Second World War`.isProperNameCapitalized); assert(`Värmland`.isProperNameCapitalized); assert(!`The big sky`.isProperNameCapitalized); assert(`Suur-London`.isProperNameCapitalized); assert(`Kingdom of Sweden`.isProperNameCapitalized); assert(`Stratford upon Avon`.isProperNameCapitalized); assert(`Henry II`.isProperNameCapitalized);
Return true if s has proper name capitalization, such as in "Africa" or "South Africa".