phpjs/_octopress/source/functions/hexdec/index.markdown

php.js offers community built php functions in javascript

---
layout: page
title: "JavaScript hexdec function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/hexdec:423
- /functions/view/hexdec
- /functions/view/423
- /functions/hexdec:423
- /functions/423
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's hexdec

{% codeblock math/hexdec.js lang:js https://raw.github.com/kvz/phpjs/master/functions/math/hexdec.js raw on github %}
function hexdec (hex_string) {
  // From: http://phpjs.org/functions
  // +   original by: Philippe Baumann
  // *     example 1: hexdec('that');
  // *     returns 1: 10
  // *     example 2: hexdec('a0');
  // *     returns 2: 160
  hex_string = (hex_string + '').replace(/[^a-f0-9]/gi, '');
  return parseInt(hex_string, 16);
}
{% endcodeblock %}

 - [Raw function on GitHub](https://github.com/kvz/phpjs/blob/master/functions/math/hexdec.js)

Please note that php.js uses JavaScript objects as substitutes for PHP arrays, they are 
the closest match to this hashtable-like data structure. 

Please also note that php.js offers community built functions and goes by the 
[McDonald's Theory](https://medium.com/what-i-learned-building/9216e1c9da7d). We'll put online 
functions that are far from perfect, in the hopes to spark better contributions. 
Do you have one? Then please just: 

 - [Edit on GitHub](https://github.com/kvz/phpjs/edit/master/functions/math/hexdec.js)

### Example 1
This code
{% codeblock lang:js example %}
hexdec('that');
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
10
{% endcodeblock %}

### Example 2
This code
{% codeblock lang:js example %}
hexdec('a0');
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
160
{% endcodeblock %}


### Other PHP functions in the math extension
{% render_partial _includes/custom/math.html %}