javascript
https://pjchender.dev/
1140921
https://github.com/EbookFoundation/free-programming-books?fbclid=IwY2xjawM8YM9leHRuA2FlbQIxMABicmlkETFnaXRwS1F4SXFMcTJneWNhAR70YU9TnT42rvemUwyWR_g_kGAuyFy0vP9c3dEQpxEQV0QSVVqsF8J_jCP8rw_aem_38LJbCGHxw805FriCwBv4Q
https://www.796t.com/category.php?cid=14
https://blog.miniasp.com/post/2010/10/04/Windows-Batch-ERRORLEVEL-and-Linux-Bash-Exit-Status