Phone Whatsapp Response to Leads SQM Format

const phoneNumberFormatter = function(number) {
  // 1. Menghilangkan karakter selain angka
  let formatted = number.replace(/\D/g, '');

  // 2. Menghilangkan angka 0 di depan (prefix)
  //    Kemudian diganti dengan 62
  if (formatted.startsWith('0')) {
    formatted = formatted.substr(1);
  }
  
  if (formatted.startsWith('62')) {
    formatted = formatted.substr(2);
  }

  if (formatted.endsWith('@c.us')) {
    formatted += '@c.us';
  }

  return formatted;
}

console.log(phoneNumberFormatter('085747290615'))