UNPKG

luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

35 lines (31 loc) 1.06 kB
var toString = require('./toString'), unescapeHtmlChar = require('./_unescapeHtmlChar'); /** Used to match HTML entities and HTML characters. */ var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, reHasEscapedHtml = RegExp(reEscapedHtml.source); /** * The inverse of `_.escape`; this method converts the HTML entities * `&`, `<`, `>`, `"`, and `'` in `string` to * their corresponding characters. * * **Note:** No other HTML entities are unescaped. To unescape additional * HTML entities use a third-party library like [_he_](https://mths.be/he). * * @static * @memberOf _ * @since 0.6.0 * @category String * @param {string} [string=''] The string to unescape. * @returns {string} Returns the unescaped string. * @example * * _.unescape('fred, barney, & pebbles'); * // => 'fred, barney, & pebbles' */ function unescape(string) { string = toString(string); return (string && reHasEscapedHtml.test(string)) ? string.replace(reEscapedHtml, unescapeHtmlChar) : string; } module.exports = unescape;