node-verhoeff - npm Package Compare versions

Comparing version 0.0.5 to 0.0.6

index.js

@@ -72,3 +72,20 @@ /*
 
+function validateAadhaar(aadhaarString) {
+  if (aadhaarString.length != 12) {
+    return new Error('Aadhaar numbers should be 12 digit in length');
+  }
+  if (aadhaarString.match(/[^$,.\d]/)) {
+    return new Error('Aadhaar numbers must contain only numbers');
+  }
+  var aadhaarArray = aadhaarString.split('');
 
+  var toCheckChecksum = aadhaarArray.pop();
+
+  if (generate(aadhaarArray) == toCheckChecksum) {
+    return true;
+  } else {
+    return false;
+  }
+};
+
 module.exports = {};
@@ -78,1 +95,2 @@ module.exports.generate = generate;
 module.exports.invArray = invArray;
+module.exports.validateAadhaar = validateAadhaar;

package.json

 {
   "name": "node-verhoeff",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "description": "Simple implementation of verhoeff checksum algorithm",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -1,2 +0,26 @@
-# verhoeff
-Simple implementation of node verhoeff
+# Verhoeff
+Simple implementation of verhoeff checksum implentation in node JS.
+#### Aadhaar numbers & verhoeff
+Did you know aadhaar numbers have last digit as a verhoeff checksum. The idea behind this is to quickly identify typing/data-entry errors on the entry machine.
+
+https://groups.google.com/forum/#!msg/aadhaarauth/eB5hOU-Qtq0/YDcWPdPOXowJ
+# Usage
+```sh
+npm i node-verhoeff --save
+```
+
+```js
+var verhoeff = require('node-verhoeff');
+
+verhoeff.validateAadhaar('496858245152')
+// should return true
+
+verhoeff.generate([4, 9, 6, 8, 5, 8, 2, 4, 5, 1, 5]);
+// should return 2, generates verhoeff checksum using the input array
+```
+##### Original code by
+Sergey Petushkov, 2014
+
+##### Understand the math
+For more info on the algorithm: http://en.wikipedia.org/wiki/Verhoeff_algorithm
+by 

specs/index.js

@@ -13,2 +13,7 @@ var thisModule = require('../index.js');
   });
+  it('Should validate aadhaar correctly', function() {
+    expect(thisModule.validateAadhaar('773393045190')).to.equal(true);
+    expect(thisModule.validateAadhaar('773393045191')).to.equal(false);
+    expect(thisModule.validateAadhaar('496858245152')).to.equal(true);
+  });
 });

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Improved metrics

Total package byte prevSize

4194

increased by57.49%

Lines of code

93

increased by29.17%

Number of lines in readme file

27

increased by800%

No dependency changes