Capitalize text and words in text for Nordic countries.

capitalize-nordic.ts

/**
 * Swedish/Finnish special characters: åäö
 * Danish/Norwegian special characters: æøå
 * Latin characters: a-z
 * Other special characters: ç (e.g. country Curaçao)
 */
const wordRegex = /[åäöçæøa-z]+/gi;

export const capitalizeWord = (word: string): string =>
  word.charAt(0).toUpperCase() + word.substring(1).toLowerCase();

export const capitalizeText = (text: string): string =>
  text.replace(wordRegex, word => capitalizeWord(word));