---
layout: page
title: "JavaScript get_class function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/get_class:409
- /functions/view/get_class
- /functions/view/409
- /functions/get_class:409
- /functions/409
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's get_class

{% codeblock classobj/get_class.js lang:js https://raw.github.com/kvz/phpjs/master/functions/classobj/get_class.js raw on github %}
function get_class (obj) {
  // http://kevin.vanzonneveld.net
  // +   original by: Ates Goral (http://magnetiq.com)
  // +   improved by: David James
  // +   improved by: David Neilsen
  // *     example 1: get_class(new (function MyClass() {}));
  // *     returns 1: "MyClass"
  // *     example 2: get_class({});
  // *     returns 2: "Object"
  // *     example 3: get_class([]);
  // *     returns 3: false
  // *     example 4: get_class(42);
  // *     returns 4: false
  // *     example 5: get_class(window);
  // *     returns 5: false
  // *     example 6: get_class(function MyFunction() {});
  // *     returns 6: false
  if (obj && typeof obj === 'object' &&
      Object.prototype.toString.call(obj) !== '[object Array]' &&
      obj.constructor && obj !== this.window) {
    var arr = obj.constructor.toString().match(/function\s*(\w+)/);

    if (arr && arr.length === 2) {
      return arr[1];
    }
  }

  return false;
}
{% endcodeblock %}

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

### Example 1
This code
{% codeblock lang:js example %}
get_class(new (function MyClass() {}));
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
"MyClass"
{% endcodeblock %}

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

Should return
{% codeblock lang:js returns %}
"Object"
{% endcodeblock %}

### Example 3
This code
{% codeblock lang:js example %}
get_class([]);
{% endcodeblock %}

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


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