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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 createPadding = require('./_createPadding'), stringSize = require('./_stringSize'), toInteger = require('./toInteger'), toString = require('./toString'); /** * Pads `string` on the right side if it's shorter than `length`. Padding * characters are truncated if they exceed `length`. * * @static * @memberOf _ * @since 4.0.0 * @category String * @param {string} [string=''] The string to pad. * @param {number} [length=0] The padding length. * @param {string} [chars=' '] The string used as padding. * @returns {string} Returns the padded string. * @example * * _.padEnd('abc', 6); * // => 'abc ' * * _.padEnd('abc', 6, '_-'); * // => 'abc_-_' * * _.padEnd('abc', 3); * // => 'abc' */ function padEnd(string, length, chars) { string = toString(string); length = toInteger(length); var strLength = length ? stringSize(string) : 0; return (length && strLength < length) ? (string + createPadding(length - strLength, chars)) : string; } module.exports = padEnd;