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What does the -ObjC linker flag do?
...bjective-C static libraries that contain categories on existing classes.
From this Technical Q&A
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Disabled input text color
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UPDATED 2019:
Combining ideas from this page into a "set and forget" solution.
input:disabled, textarea:disabled, input:disabled::placeholder, textarea:disabled::placeholder {
-webkit-text-fill-color: currentcolor; /* 1. sets text fill to current `colo...
Is MonoTouch now banned on the iPhone? [closed]
...t. Any statements below are purely historical!
Yes, it seems pretty clear from their license agreement now that if the original application is written in C# then it would be violating the license:
...Applications must be originally written in Objective-C, C, C++, or JavaScript as executed by the i...
Sort hash by key, return hash in Ruby
...alue.
end
but in summary, it makes no sense to talk about a sorted hash. From the docs, "The order in which you traverse a hash by either key or value may seem arbitrary, and will generally not be in the insertion order." So inserting keys in a specific order into the hash won't help.
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Why does ConcurrentHashMap prevent null keys and values?
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From the author of ConcurrentHashMap himself (Doug Lea):
The main reason that nulls aren't allowed in ConcurrentMaps
(ConcurrentHashMaps, ConcurrentSkipListMaps) is that ambiguities that
may be just barely tolerable i...
How to use the 'main' parameter in package.json?
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From the npm documentation:
The main field is a module ID that is the primary entry point to your
program. That is, if your package is named foo, and a user installs
it, and then does require("foo"), then your main mo...
What is maximum query size for mysql?
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If it's in bytes, then the 1mb from answer is about 8 times smaller.
– Lukas Salich
Oct 5 '17 at 10:36
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How to use custom packages
...ea is that Go searches for imported paths under each directory it extracts from the GOPATH environment variable (they are called "workspaces"), but this search is (luckily) not recursive, so such paths are effectively "anchored" at their respective workspaces.
– kostix
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How to run cron once, daily at 10pm
...t I look at everytime I am writing a new crontab entry:
To start editing from terminal -type:
zee$ crontab -e
what you will add to crontab file:
0 22 * * 0 some-user /opt/somescript/to/run.sh
What it means:
[
+ user => 'some-user',
+ minute => ‘0’, <<= ...
Random hash in Python
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+1 for not computing a relatively expensive hash from a random number: this approach is 5x faster.
– Nicolas Dumazet
Jun 11 '09 at 1:36
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