cheat sheets

https://weblogs.asp.net/bradvincent/linq-cheat-sheet
https://download.damieng.com/dotnet/LINQToSQLCheatSheet.pdf
http://nickberardi.com/content/images/2008/02/linq-standard-query-operators.pdf




https://oscarotero.com/jquery/
https://makeawebsitehub.com/jquery-mega-cheat-sheet/


http://www.tutorialsteacher.com/linq/linq-element-operator-first-firstordefault