password.js

const PasswordGenerator = (
  formGeneratePassword: TypeGeneratePassword
) => {
  const numbers = "0123456789";
  const symbols = "!@#$%^&*()_+~`|}{[]:;?><,./-=";
  const letters = "abcdefghijklmnopqrstuvwxyz";
  const uppercaseLetters = letters.toUpperCase();
  const lowercaseLetters = letters.toLowerCase();

  let characters = "";
  let password = "";

  if (formGeneratePassword.numbers) {
    characters += numbers;
  }

  if (formGeneratePassword.symbols) {
    characters += symbols;
  }

  if (formGeneratePassword.upperCase) {
    characters += uppercaseLetters;
  }

  if (formGeneratePassword.lowerCase) {
    characters += lowercaseLetters;
  }

  for (let i = 0; i < formGeneratePassword.length; i++) {
    password += characters.charAt(
      Math.floor(Math.random() * characters.length)
    );
  }

  return password;
};

interface TypeGeneratePassword {
  numbers: boolean;
  symbols: boolean;
  length: number;
  lowerCase: boolean;
  upperCase: boolean;
  password?: string;
}