@bee.js/node/tools/string.js

A JavaScript framework for making Node.js API´s

module.exports = {
  onlyNumbers: function (string = "") {
    return string.replace(/\D/g, "");
  },

  onlyLetters: function (string = "") {
    return string.replace(/[^a-zA-Z]+/g, "");
  },

  sqlEscape: function (string = "") {
    return string.replace(/[\0\x08\x09\x1a\n\r"'\\]/g, function (char) {
      switch (char) {
        case "\0":
          return "\\0";
        case "\x08":
          return "\\b";
        case "\x09":
          return "\\t";
        case "\x1a":
          return "\\z";
        case "\n":
          return "\\n";
        case "\r":
          return "\\r";
        case '"':
        case "'":
        case "\\":
          return "\\" + char;
        default:
          return char;
      }
    });
  },

  randomString: function (length = 45, characters = null) {
    characters =
      characters ||
      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    let result = "";
    let charactersLength = characters.length;

    for (let i = 0; i < length; i++)
      result += characters.charAt(Math.floor(Math.random() * charactersLength));

    return result;
  },

  isStrongPassword: function (password = "") {
    return password.match(/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{6,20}$/);
  },

  isEmail: function (email = "") {
    const re =
      /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(String(email).toLowerCase());
  },
};