Türk cep telefonu numarası formatı. Turkish Phone Code format. (Javascript)

main.js

// Inspired from this answer by maerics https://stackoverflow.com/a/8358141/1648286

function phoneNumberFormatView(phoneNumberString) {
  let cleaned = ('' + phoneNumberString).replace(/\D/g, '');
  let match = cleaned.match(/^(90|)?(\d{3})(\d{3})(\d{2})(\d{2})$/);
  if (match) {
    let intlCode = (match[1] ? '+90 ' : '');
    return [intlCode, match[2], ' ', match[3], ' ', match[4], ' ', match[5]].join('');
  }
  return null;
}

main.ts

export function phoneNumberFormatView(phoneNumberString: string): string {
  let cleaned = ('' + phoneNumberString).replace(/\D/g, '');
  let match = cleaned.match(/^(90|)?(\d{3})(\d{3})(\d{2})(\d{2})$/);
  if (match) {
    let intlCode = (match[1] ? '+90 ' : '');
    return [intlCode, match[2], ' ', match[3], ' ', match[4], ' ', match[5]].join('');
  }
  return null;
}

Output

console.log(phoneNumberFormatView('+905530768278')); // +90 553 076 82 78
console.log(phoneNumberFormatView('5530768278')); // 553 076 82 78