@modern-kit/utils/dist/formatter/formatPhoneNumber/index.mjs

modern-kit/utils

import { extractNumber } from '../../string/extractNumber/index.mjs';
import '../../string/extractLetters/index.mjs';
import '../../object/objectKeys/index.mjs';

function formatPhoneNumber(value) {
  const cleanedValue = extractNumber(value);
  const isSeoul = cleanedValue.startsWith("02");
  if (cleanedValue.length === 8) {
    return cleanedValue.replace(/(\d{4})(\d{4})/, "$1-$2");
  }
  if (isSeoul && (cleanedValue.length === 9 || cleanedValue.length === 10)) {
    return cleanedValue.replace(/(\d{2})(\d{3,4})(\d{4})/, "$1-$2-$3");
  }
  return cleanedValue.replace(/(\d{3})(\d{3,4})(\d{4})/, "$1-$2-$3");
}

export { formatPhoneNumber };
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