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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

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var $ = require('../internals/export'); var nativeAtanh = Math.atanh; var log = Math.log; // `Math.atanh` method // https://tc39.github.io/ecma262/#sec-math.atanh // Tor Browser bug: Math.atanh(-0) -> 0 $({ target: 'Math', stat: true, forced: !(nativeAtanh && 1 / nativeAtanh(-0) < 0) }, { atanh: function atanh(x) { return (x = +x) == 0 ? x : log((1 + x) / (1 - x)) / 2; } });