luhn-generator
v0.6.0
Published
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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Luhn Generator
A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the "modulus 10" or "mod 10" algorithm
npm install luhn-generator --save
Usage
- ECMAScript Harmony
import luhn from '../dist/luhn'; luhn.generate(1, { pad: 12 }); // 000000000018
- CommonJS
$ node > const luhn = require('../dist/luhn'); > luhn.generate(1, { pad: 12 }); // 000000000018
- AMD
<!-- amd.html --> <html> <body> <script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.5/require.min.js"></script> <script> window.requirejs(['dist/luhn.min'], function(luhn) { console.log(luhn.generate(1, { pad: 12 })); // 000000000018 }); </script> </body> </html>
- Script Tag
<!-- script-tag.html --> <html> <body> <script src="./dist/luhn.min.js"></script> <script> console.log(luhn.generate(1, { pad: 12 })); // 000000000018 </script> </body> </html>
Generate Luhn "check digit" for number 1
:
luhn.checksum(1); // 8
luhn.checksum(12); // 5
Generate number that will pass Luhn algorithm validation:
luhn.generate(1); // 18
luhn.generate(12); // 125
luhn.generate(1, { pad: 5 }); // 00018
Generate random number that will pass Luhn algorithm validation:
luhn.random(12); // 6436204626980
luhn.random(50); // 54833184596638864915195736286128781213916608803535
luhn.random(12, { pad: 50 }); // 00000000000000000000000000000000000004591785326079
Validate number with Luhn algorithm:
luhn.validate(1); // false
luhn.validate(18); // true
luhn.validate(125); // true
To Do
- Add page with examples
- Add card number generation