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How can I reverse the order of lines in a file?
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Especially worth mentioning to those using a version of tail with no -r option! (Most Linux folks have GNU tail, which has no -r, so we have GNU tac).
– oylenshpeegul
Apr 12 '09 at 21:48
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Importing two classes with same name. How to handle?
...ay that using two classes with the same name and a similiar function is usually not the best idea unless you can make it really clear which is which.
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What can be the reasons of connection refused errors?
...estination machine, but its backlog of pending connections is full.
A firewall between the client and server is blocking access (also check local firewalls).
After checking for firewalls and that the port is open, use telnet to connect to the ip/port to test connectivity. This removes any potentia...
MySQL error code: 1175 during UPDATE in MySQL Workbench
... time thing I suggest you turn it back on as this makes it very easy to royally muck up your data if you're not careful
– Frankenmint
Aug 11 '16 at 9:08
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Emacs: print key binding for a command or list all key bindings
...a command.
You are correct, C-h b (or M-x describe-bindings) will show you all bindings. C-h m (M-x describe-mode) is also handy to list bindings by mode.
You might also try C-h k (M-x describe-key) to show what command is bound to a key. For instance, on my machine save-buffers-kill-emacs isn't b...
How to dynamically compose an OR query filter in Django?
...o:
list = [1, 2, 3]
# it gets a bit more complicated if we want to dynamically build
# OR queries with dynamic/unknown db field keys, let's say with a list
# of db fields that can change like the following
# list_with_strings = ['dbfield1', 'dbfield2', 'dbfield3']
# init our q objects variable to ...
Can I get CONST's defined on a PHP class?
...:class would work fine, but if you'd use those in e.g. namespace Jungle - calling B::class there without including it with use would result in Jungle\B (even though Jungle does NOT have B at all!)
– jave.web
Sep 5 '19 at 18:07
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How to store custom objects in NSUserDefaults
... class, and I need to them to last between sessions. Before I was putting all my information in NSUserDefaults , but this isn't working.
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How to manually set an authenticated user in Spring Security / SpringMVC
After a new user submits a 'New account' form, I want to manually log that user in so they don't have to login on the subsequent page.
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How to check a radio button with jQuery?
...e:
$("#radio_1").attr('checked', 'checked');
Tip: You may also want to call click() or change() on the radio button afterwards. See comments for more info.
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