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How to reload a clojure file in REPL
...d compilation
errors.
If you remove definitions from a source file and then reload it,
those definitions are still available in memory. If other code
depends on those definitions, it will continue to work but will
break the next time you restart the JVM.
If the reloaded namespace contain...
Java Date vs Calendar
...ffer only when you need to have Strings that you can easily manipulate and then convert them into Strings using toString() method. In the same way, I only use Calendar if I need to manipulate temporal data.
For best practice, I tend to use immutable objects as much as possible outside of the domai...
Maximum packet size for a TCP connection
...probably go to 1450 and sometimes to 1480'ish? If you need more than that then of course you need to split in to 2 packets, of which there are several obvious ways of doing..
The problem is that you're talking about creating a data packet and writing it out via TCP, but of course there's header da...
set up device for development (???????????? no permissions)
...to kill and start the adb server again. On linux: sudo adb kill-server and then sudo adb start-server. Then it will detect nearly every device out of the box.
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Base64 length calculation?
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@Crog As it is written down if n = 1 then you will get 4 / 3 = 1 using integers. As you've indicated, the expected result is 2, not 1.
– Maarten Bodewes
Jun 19 at 13:46
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Why does pycharm propose to change method to static
...d add though, if you know it's definitely not going to be a static method, then include a "throw NotImplementedError" while you are there to be certain you don't use it without completing it.
– Richard Green
Aug 3 '15 at 14:33
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Read and write a String from text file
...e is no such file." Because i added my .txt files to project navigator and then i try to open them i get this message. (Create them on desktop and dragged them to project navigator)
– Darvydas
Nov 17 '15 at 15:53
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Reconnection of Client when server reboots in WebSocket
...is called here, the thread returns from the function (clearing the stack), then goes to process the next event in the queue. It will eventually get to our anonymous function that calls start and that will be called as the top frame in the stack.
– Stinky
Oct 7 ...
How to store a dataframe using Pandas
..._pickle:
df.to_pickle(file_name) # where to save it, usually as a .pkl
Then you can load it back using:
df = pd.read_pickle(file_name)
Note: before 0.11.1 save and load were the only way to do this (they are now deprecated in favor of to_pickle and read_pickle respectively).
Another popula...
Drop multiple tables in one shot in mysql
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Example:
Let's say table A has two children B and C. Then we can use the following syntax to drop all tables.
DROP TABLE IF EXISTS B,C,A;
This can be placed in the beginning of the script instead of individually dropping each table.
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