hillerstorm · September 30, 2022 09:31
diff --git a/README.md b/README.md
diff --git a/annotated.js b/annotated.js
 function(
    a, // social security number
    b, // placeholder
    c, // --||--
    d  // --||--
    ){
    c='';
    // we're only interested in the first 10 chars (9 digits)
    // using a second index to skip the dash while still maintaining
    // an index to check for even/odd
    for(b=d=0;b<10;b++)
        c+=b!=6              // if we're not on the dash
            ?a[b]*(d++%2||2) // multiply the value with 2 if needed
            :'';             // skip the dash
    b=0; // reset the index to use as a sum

    // sum all the digits
    for(d in c)
        b+=c[d]*1;

    // multiply the sum by 9 and check if the last digit of the checksum
    // matches the last digit of the input
    return b*9%10==a[10]
 }
diff --git a/index.js b/index.js
 function(a,b,c,d){c='';for(b=d=0;b<10;b++)c+=b!=6?a[b]*(d++%2||2):'';b=0;for(d in c)b+=c[d]*1;return b*9%10==a[10]}
diff --git a/LICENSE.txt b/LICENSE.txt
            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2013 Johan Hillerström <https://github.com/hillerstorm>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/package.json b/package.json
 {
  "name": "swedishSocialSecurityNumberValidator",

  "description": "Validates the format and checksum of a Swedish social security number.",

  "keywords": [
    "validation",
    "swedish",
    "socialsecuritynumber"
  ]
 }
diff --git a/test.html b/test.html
 <!DOCTYPE html> 
 <title>Swedish social security number validator</title>
 <div>Expected value: <b>true</b></div>
 <div>Actual value: <b id="ret"></b></div>
 <script>
  var validate = function(a,b,c,d){c='';for(b=d=0;b<10;b++)c+=b!=6?a[b]*(d++%2||2):'';b=0;for(d in c)b+=c[d]*1;return b*9%10==a[10]}

  document.getElementById('ret').innerHTML = validate('811218-9876')
 </script>
	function(
	a, // social security number
	b, // placeholder
	c, // --\|\|--
	d // --\|\|--
	){
	c='';
	// we're only interested in the first 10 chars (9 digits)
	// using a second index to skip the dash while still maintaining
	// an index to check for even/odd
	for(b=d=0;b<10;b++)
	c+=b!=6 // if we're not on the dash
	?a[b]*(d++%2\|\|2) // multiply the value with 2 if needed
	:''; // skip the dash
	b=0; // reset the index to use as a sum

	// sum all the digits
	for(d in c)
	b+=c[d]*1;

	// multiply the sum by 9 and check if the last digit of the checksum
	// matches the last digit of the input
	return b*9%10==a[10]
	}
	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2013 Johan Hillerström <https://github.com/hillerstorm>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

	0. You just DO WHAT THE FUCK YOU WANT TO.
	{
	"name": "swedishSocialSecurityNumberValidator",

	"description": "Validates the format and checksum of a Swedish social security number.",

	"keywords": [
	"validation",
	"swedish",
	"socialsecuritynumber"
	]
	}
	<!DOCTYPE html>
	<title>Swedish social security number validator</title>
	<div>Expected value: <b>true</b></div>
	<div>Actual value: <b id="ret"></b></div>
	<script>
	var validate = function(a,b,c,d){c='';for(b=d=0;b<10;b++)c+=b!=6?a[b](d++%2\|\|2):'';b=0;for(d in c)b+=c[d]1;return b*9%10==a[10]}

	document.getElementById('ret').innerHTML = validate('811218-9876')
	</script>