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Why do we usually use || over |? What is the difference?
...)
{
//we check for string being null before calling isEmpty()
}
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Multiprocessing - Pipe vs Queue
... benefits.
BONUS MATERIAL 2
Multiprocessing introduces subtle changes in information flow that make debugging hard unless you know some shortcuts. For instance, you might have a script that works fine when indexing through a dictionary in under many conditions, but infrequently fails with certain...
How can you find the height of text on an HTML canvas?
...th
var w = ctx.measureText(message).width;
// New function gets the other info we need
var h = getTextHeight(font);
testLine(ctx, x, y, w, 'red');
testLine(ctx, x, y + h.ascent, w, 'green');
testLine(ctx, x, y + h.height, w, 'blue');
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Undo part of unstaged changes in git
...1 you can cherry-pick it within the next 30 days. The --edit lets you add info to the commit message to assist you in finding the SHA1 later if you want it. On the other hand, this would dirty up the git reflog, so I guess it's a tradeoff based on what you do.
– asmeurer
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Why does SIGPIPE exist?
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Machine info:
Linux 3.2.0-53-generic #81-Ubuntu SMP Thu Aug 22 21:01:03 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
I wrote this code below:
// Writes characters to stdout in an infin...
Bulk insert with SQLAlchemy ORM
...ing from client-to-server a LOT better than using SQL via SQLAlchemy. More info: Large bulk insert performance difference PostgreSQL vs ....
– gertvdijk
Jul 12 '19 at 16:42
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What is “android:allowBackup”?
...s in the one line error message; you don't have to search the web for more info.
If you are using lint via Eclipse, either open the lint warnings view, where you can select the lint error and see a longer explanation, or invoke the quick fix (Ctrl-1) on the error line, and one of the suggestions is...
Possible to change where Android Virtual Devices are saved?
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+1 for your info. but I am using xp. for me this will work after restart. Thank you.
– Gunaseelan
May 30 '13 at 8:10
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What is the maximum length of a valid email address?
...un a bunch of tests on an email to see if it is valid here. http://isemail.info/
The RFC, or Request for Comments is a type of publication from the Internet Engineering Task Force (IETF) that defines 254 characters as the limit. Located here - https://tools.ietf.org/html/rfc5321#section-4.5.3
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How can I start PostgreSQL server on Mac OS X?
...package manager includes launchctl plists to start automatically. For more information, run brew info postgres.
Start manually
pg_ctl -D /usr/local/var/postgres start
Stop manually
pg_ctl -D /usr/local/var/postgres stop
Start automatically
"To have launchd start postgresql now and restart at login:"...