Utils

Introduction

The goal of this documentation is to set a standard for utils in our projects.

Where to find them

utils must be located inside a folder called src/utils. See an example.

Common Utils

• Phone number formatter
• CPF-CNPJ formatter
• Email Validator

Phone number formatter

const formatPhoneNumber = (input: string) => {
  let cleaned = input.replace(/\D/g, "");
  let match = cleaned.match(/^(\d{2})(\d{5})(\d{4})$/);

  if (match) {
    return "(" + match[1] + ") " + match[2] + "-" + match[3];
  } else {
    return cleaned;
  }
};

CPF-CPNJ formatter

const formatCpfCnpj = (input: string) => {
  let cleaned = input.replace(/\D/g, "");
  let cpfMatch = cleaned.match(/^(\d{3})(\d{3})(\d{3})(\d{2})$/);
  let cnpjMatch = cleaned.match(/^(\d{2})(\d{3})(\d{3})(\d{4})(\d{2})$/);

  if (cpfMatch) {
    return `${cpfMatch[1]}.${cpfMatch[2]}.${cpfMatch[3]}-${cpfMatch[4]}`;
  } else if (cnpjMatch) {
    return `${cnpjMatch[1]}.${cnpjMatch[2]}.${cnpjMatch[3]}/${cnpjMatch[4]}-${cnpjMatch[5]}`;
  } else {
    return cleaned;
  }
};

Email Validator

function validateEmail(value: string) {
  return /^[a-zA-Z0-9.+_-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)+$/.test(value);
};