Why you might need two or more versions of Jquery on one page?
Repeatedly found a similar story and how they reconciled in the form of, for example, noConflict. Especially in wordpress. And why it might be needed? Alternatively, to ensure the operation of any old plugins? Or for something else?
to support the existing functionality and the new.
the situations are different. for example, You have a working service, which was implemented in 13-14 year and You the current version and want to add something new and not write everything from scratch. And then connect several versions.
estefania answered on June 8th 19 at 17:02
For me personally, a year ago was a slider that worked in jquery 1.8 , but before I used to have a bunch of libraries which support jquery 1.13. So I had to put two versions. But it sucks to do so.