I'm trying to use this: var path = Drupal.settings.mymodule.basePath;but I'm getting this error: Uncaught TypeError: Cannot read property 'basePath' of undefined.

  • Why would you need it? Maybe there is an other way to get the same effect?
    – Mołot
    May 13, 2014 at 7:10
  • I have path to images in javascript code that are not working.
    – josaric
    May 13, 2014 at 7:12
  • possible duplicate of Check if a module is enabled with JavaScript
    – Anil Sagar
    May 13, 2014 at 7:14
  • No, javascript is working but images don't.
    – josaric
    May 13, 2014 at 7:15
  • 1
    @josaric Glad you did. Don't forget to post it as actual answer when possible. Or, if you don't want to wait, I can post it for you as a Community Wiki.
    – Mołot
    May 13, 2014 at 8:43

4 Answers 4


First of all you need to call drupal_add_js() with a 'settings' parameter. This will inform your Drupal.settings javascript namespace about the settings/variables you need in this file via drupal. Try the following :

Lets suppose you want to call a specific *.js file on a nodes' view page, call it as :

drupal_add_js(array('myModule' => array('basepath' => '<your-drupal-base-path>')), 'setting');

This basepath is global and you can get it in any *.js file called at this point. Next, you can use this basepath in your *.js file as :

var path = Drupal.settings.myModule.basepath;
  • Where should we put this code: drupal_add_js(array('myModule' => array('basepath' => '<your-drupal-base-path>')), 'setting'); I've put it in MYMODULE.module but it returns fatal error: call to undefined function drupal_add_js()
    – Mohandes
    Jun 19, 2019 at 5:21
  1. It starts with adding the following line to your modules .info file (rename MYMODULE to your module name or the name you want to give to your javascript file)

    scripts[] = MYMODULE.js

  2. The next step is to create the MYMODULE.js file. The general template of the javascript file looks like:

      (function ($) {
         Drupal.behaviors.MYMODULE = {
         attach: function (context, settings) {
            // Your javascript code here
  3. You can pass variables from your PHP to your Javascript file by adding the following code somewhere in your module.

    drupal_add_js(array('MYMODULE' => array('tax_rate' => '0.06')), 'setting');

You can now access this variable in your JavaScript:

(function ($) {
  Drupal.behaviors.MYMODULE = {
    attach: function (context, settings) {
      // You can access the variable by using Drupal.settings.MYMODULE.tax_rate


At First you need to have a module or create a module

See detailed steps below on adding this condition

  • Create a folder called 'custom' in sites/all/modules
  • Create a folder called 'mycustomjs' in above custom folder
  • Create a file called 'mycustomjs.info' inside above folder with

below code

name = My Custom JS Alters
description = A custom module to interact with JS
core = 7.x
package = Custom

Create a file called mycustomjs.module inside 'mycustomjs' folder with below code


 function mycustomjs_init(){

      global $base_path;
      global $base_url;

     $my_base_path = $GLOBALS['base_url'] . $GLOBALS['base_path'];
    // or $my_base_path = $base_url . $base_path;

       $my_settings = array(
         'basePath' => $base_path,
         'animationEffect' => variable_get('effect', 'none')

      drupal_add_js(array('mycustomjs' => $my_settings), 'setting');


For JS side

var basePath = Drupal.settings.mycustomjs.basePath;
var effect = Drupal.settings.mycustomjs.animationEffect;

For more information See below

Creating Drupal 7.x modules

Drupal 7 global javascript variables

The Drupal JavaScript API

Drupal Base Url



To get the path on js file like following:

var path = Drupal.settings.myModule.basepath;

First need to initiate add_drupal_js() with 'settings' parameter like :

drupal_add_js(array('myModule' => array('basepath' => '<the-path>')), 'setting'); 


drupal_add_js( array( 
   'myModule' => array(
             'basepath' => drupal_get_path('module', 'myModule')
    ), 'setting' 

Then on any *.js file you can access this variable as following:

 (function ($) {
      Drupal.behaviors.myModule= {
        attach: function (context, settings) {
          // You can access the variable by using var 
          path = Drupal.settings.myModule.basepath;


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