Uncaught TypeError: jQuery(…).tablesorter is not a function

Question

I have a typo3 plugin hat works fine in typo3 6.2.31 now I migrate to 7.6.23. I have several problems with jQuery libraries. I often got this error:

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Answer 1

A working solution is:

TYPO3.jQuery(".table.sortable").tablesorter();

Answer 2

Check that there is a loaded tablesorter plugin first before the tyop3 plugin, sounds like ideal sort order would be:

1. jQuery library
2. Tablesorter plugin
3. Typo3 plugin