can't access property "length", a.sharedService.visibleColumns is undefined when hiding column

[Elias-Graf]

Describe the bug

The error can't access property "length", a.sharedService.visibleColumns is undefined is printed to the console, after moving a column, and then hiding one of the columns.

Reproduction

1. Go to: https://ghiscoding.github.io/Angular-Slickgrid/#/draggrouping
2. Move "Title" column to the second position (after: "Duration")
3. Hide the "Title" column (or any other) via right-click and removing the check

Expectation

No error should be thrown.

Environment Info

Environment: https://ghiscoding.github.io/Angular-Slickgrid/#/draggrouping
Browser: Firefox / Chrome
OS: Windows 11

Validations

• Follow our Code of Conduct
• Read the HOWTO - Step by Step.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[ghiscoding]

The issue does not show up if you refresh the page, it only shows when coming from another page. So there's probably some leaking somewhere of something that wasn't disposed or destroyed before routing to another page. It seems to point to SortableJS code throwing and the error comes from this line in the SortableJS github code
https://github.com/SortableJS/Sortable/blob/7af63fdc5d7512e7f0b8abb10970d473521b31a5/Sortable.js#L1115

Also probably related to this other SortableJS issue and a user also mentioned SlickGrid as well in that issue
SortableJS/Sortable#2201

[ghiscoding]

fixed in v6.0.1

[ghiscoding]

you could also star the project if you like the lib 😉 ⭐

Cheers