e.uniqueSort is not a function is thrown when jQuery version prior 2.2.x and 3.x is used together with Kendo UI R2 2019 (2019.2.514)

[Telerik Admin]

$.uniqueSort() is not supported in jQuery versions prior 2.2.x and 3.x . Thus, using jQuery version 1.10.x, 1.11.x, 2.0.x or 2.1.x throws an error.

The usage of $.uniqueSort() in jQuery 1.10.x throws an error in multiple components like Menu, DropDownList, DropDownTree, and TreeView.

This problem will be fixed in our upcoming service pack release R2 2019 SP1. 

As a temporary  workaround until the issue is fixed you can assign jQuery unique method implementation to the jQuery uniqueSort if missing before initialization of any Kendo UI widget on the page.

For example please refer to the https://dojo.telerik.com/AGAsAKAG/3 dojo where the following code 

kendo.jQuery.uniqueSort = kendo.jQuery.uniqueSort ? kendo.jQuery.uniqueSort : kendo.jQuery.unique;

is included before the initialization of the Kendo UI widgets. 

Please, accept our apology for the inconvenience caused!

 

[Melaku]

Does it work with jquery 3.4.1 ?

[Boyan Dimitrov]

Hello,

Indeed it works fine with jQuery 3.4.1 version and there is no need of the workaround when jQuery 3.4.1 is used. 

Regards,
Boyan Dimitrov
Progress Telerik

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