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$(...).once is not a function in Drupal10

Open on Drupal.org →
Created on 21 February 2023, over 1 year ago
Updated 29 April 2023, over 1 year ago

Problem/Motivation

The jquery.once library was apparently removed in Drupal 10.
I do now have the problem, that improved_multi_select doesn't work as a consequence.

I get the error: $(...).once is not a function

Steps to reproduce

Install Drupal 10.0.3
Install improved_multi_select latest dev
Visit any page with IMS enabled on the form element
You should see a JavaScript error and have a non-working IMS

Proposed resolution

I attached a patch that replaces jQuery.once with the new core/jquery.once library.

According https://www.drupal.org/node/3158256 → this library part of 9.2 core

🐛 Bug report
Status

Fixed

Version

1.0

Component

Code

Created by

🇺🇸United States scotwith1t Birmingham, AL

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