mask-utils-ccg/src/cpf.ts

Biblioteca de máscaras para CPF, CNPJ, Telefone e CEP

export function maskCPF(value: string): string {
    return value
      .replace(/\D/g, "")
      .replace(/(\d{3})(\d)/, "$1.$2")
      .replace(/(\d{3})(\d)/, "$1.$2")
      .replace(/(\d{3})(\d{1,2})$/, "$1-$2");
  }