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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

13 lines (11 loc) 317 B
// 20.2.2.33 Math.tanh(x) var $export = require('./_export'); var expm1 = require('./_math-expm1'); var exp = Math.exp; $export($export.S, 'Math', { tanh: function tanh(x) { var a = expm1(x = +x); var b = expm1(-x); return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x)); } });