===== Examples =====
Simple examples:
"lorem ipsum dolor sit amet".toTitleCase();
// result: "Lorem Ipsum Dolor Sit Amet"
"LATIN CAPITAL LETTER J".toTitleCase();
// result: "Latin Capital Letter J"
This also works for non-Latin scripts, as long as there are actually letter cases in that script:
"οἱ δὲ φοίνιϰες οὗτοι οἱ σὺν κάδμῳ ἀπιϰόμενοι".toTitleCase();
// result: "Οἱ Δὲ Φοίνιϰες Οὗτοι Οἱ Σὺν Κάδμῳ Ἀπιϰόμενοι"
"bсички хора се раждат свободни".toTitleCase();
// result: "Bсички Хора Се Раждат Свободни"
===== Relevant JavaScript methods =====
* [[mdn>Web/JavaScript/Reference/Global_Objects/String/toUpperCase|String.prototype.toUpperCase()]] on MDN.
* [[mdn>Web/JavaScript/Reference/Global_Objects/String/toLowerCase|String.prototype.toLowerCase()]] on MDN.