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Better way to cast object to int
...ou have several options:
(int) — Cast operator. Works if the object already is an integer at some level in the inheritance hierarchy or if there is an implicit conversion defined.
int.Parse()/int.TryParse() — For converting from a string of unknown format.
int.ParseExact()/int.TryParseExact()...
How to run multiple shells on Emacs
...gument. It's a way of injecting an argument into the next command. You can read more about it with C-h k C-u (C-h k runs describe-key, very handy!)
– Matt Curtis
Sep 28 '14 at 1:35
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Finding duplicate values in a SQL table
...u2.name AND u.email = u2.email AND u.id > u2.id
)
Much more easier to read and understand IMHO
Note: The only issue is that you have to execute the request until there is no rows deleted, since you delete only 1 of each duplicate each time
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django change default runserver port
...RVER_PORT
I'm loading the default port form settings here (which in turn reads other configuration files), but you could just as well read it from some other file directly.
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When is memoization automatic in GHC Haskell?
... this case, the new version is much less efficient because it will have to read about 1 GB from memory where y is stored, while the original version would run in constant space and fit in the processor's cache. In fact, under GHC 6.12.1, the function f is almost twice as fast when compiled without ...
Filename too long in Git for Windows
...ar as I understand this, it's a limitation of msys and not of Git. You can read the details here:
https://github.com/msysgit/git/pull/110
You can circumvent this by using another Git client on Windows or set core.longpaths to true as explained in other answers.
git config --system core.longpaths t...
Pass a JavaScript function as parameter
...function executing in the "parent" function or using eval() ? (Since I've read that it's insecure.)
13 Answers
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How do I know the script file name in a Bash script?
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me=`basename "$0"`
For reading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try:
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
IMO, that'll produce confu...
How do I store an array in localStorage? [duplicate]
...the two states (JSON is just a long piece of string data). You may want to read up on JSON if that is what you don't understand. :)
– James Coyle
Mar 3 '13 at 0:10
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
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Reading those comments 7 years later I allow myself to indicate this link: stackoverflow.com/questions/8892350/… likely to fix the difference between immutable and unmodifiable, discussed here.
– Natha...