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

php.js offers community built php functions in javascript

---
layout: page
title: "JavaScript bcscale function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/bcscale:874
- /functions/view/bcscale
- /functions/view/874
- /functions/bcscale:874
- /functions/874
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's bcscale

{% codeblock bc/bcscale.js lang:js https://raw.github.com/kvz/phpjs/master/functions/bc/bcscale.js raw on github %}
function bcscale (scale) {
  // From: http://phpjs.org/functions
  // +   original by: lmeyrick (https://sourceforge.net/projects/bcmath-js/)this.
  // -    depends on: _phpjs_shared_bc
  // *     example 1: bcscale(1);
  // *     returns 1: 3
  //  @todo: implement these testcases
  //        bcscale(0);
  //
  //        bcmath.test.result('bcscale', 1, false, bcscale('fail'));
  //        bcmath.test.result('bcscale', 2, false, bcscale(-1));
  //        bcmath.test.result('bcscale', 3, true, bcscale(5));
  //        bcmath.test.result('bcscale', 4, true, bcscale(0));
  var libbcmath = this._phpjs_shared_bc();

  scale = parseInt(scale, 10);
  if (isNaN(scale)) {
    return false;
  }
  if (scale < 0) {
    return false;
  }
  libbcmath.scale = scale;
  return true;
}
{% endcodeblock %}

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

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

Should return
{% codeblock lang:js returns %}
3
{% endcodeblock %}


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