---
layout: page
title: "JavaScript runkit_function_remove function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/runkit_function_remove:825
- /functions/view/runkit_function_remove
- /functions/view/825
- /functions/runkit_function_remove:825
- /functions/825
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's runkit_function_remove

{% codeblock runkit/runkit_function_remove.js lang:js https://raw.github.com/kvz/phpjs/master/functions/runkit/runkit_function_remove.js raw on github %}
function runkit_function_remove (funcname) {
  // http://kevin.vanzonneveld.net
  // +   original by: Brett Zamir (http://brett-zamir.me)
  // %          note 1: Function can only remove from the global context
  // *     example 1: function add (a, b, c) {return a+b+c;}
  // *     example 1: runkit_function_remove('add');
  // *     returns 1: true
  if (this.window[funcname] === undefined) { // Requires existing function?
    return false;
  }

  try {
    this.window[funcname] = undefined;
  } catch (e) {
    return false;
  }
  return true;
}
{% endcodeblock %}

 - [view on github](https://github.com/kvz/phpjs/blob/master/functions/runkit/runkit_function_remove.js)
 - [edit on github](https://github.com/kvz/phpjs/edit/master/functions/runkit/runkit_function_remove.js)

### Example 1
This code
{% codeblock lang:js example %}
function add (a, b, c) {return a+b+c;}
runkit_function_remove('add');
{% endcodeblock %}

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


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