superflected/src/titleize.ts

A port of ActiveSupport's inflector to Node.js

import { humanize } from "./humanize";
import { underscore } from "./underscore";

export function titleize(word: string) {
  return humanize(underscore(word)).replace(/(^|[\s¿/]+)([a-z])/g, function (match, boundary, letter, idx, string) {
    return match.replace(letter, letter.toUpperCase());
  });
}