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What does @synchronized() do as a singleton method in objective C?
...Edit: Adding some more information that wasn't in the original answer from 2011.
The @synchronized directive prevents multiple threads from entering any region of code that is protected by a @synchronized directive referring to the same object. The object passed to the @synchronized directive is th...
How to Diff between local uncommitted changes and origin
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edited Jan 20 '17 at 12:49
answered Dec 9 '15 at 13:44
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Random alpha-numeric string in JavaScript? [duplicate]
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answered May 23 '12 at 20:13
NimphiousNimphious
4,15111 gold badge1414 silver badges1717 bronze badges
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Can the Unix list command 'ls' output numerical chmod permissions?
... blah
chmod 7444 blah
will result in:
7444 -r-Sr-Sr-T 1 cheko cheko 0 2009-12-05 01:03 blah
and
touch blah
chmod 7555 blah
will give:
7555 -r-sr-sr-t 1 cheko cheko 0 2009-12-05 01:03 blah
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Why do I get “'property cannot be assigned” when sending an SMTP email?
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answered Feb 8 '12 at 20:59
MRBMRB
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How to create a MySQL hierarchical recursive query
...H [RECURSIVE] syntax for recursive queries (e.g. Postgres 8.4+, SQL Server 2005+, DB2, Oracle 11gR2+, SQLite 3.8.4+, Firebird 2.1+, H2, HyperSQL 2.1.0+, Teradata, MariaDB 10.2.2+). And as of version 8.0, also MySQL supports it. See the top of this answer for the syntax to use.
Some databases have a...
Display milliseconds in Excel
... have a column of integers which are timestamps in milliseconds (e.g. 28095200 is 7:48:15.200 am), and I want to make a new column next to it which keeps a running average and displays the time in a hh:mm:ss.000 format.
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How can I read large text files in Python, line by line, without loading it into memory?
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answered May 6 '18 at 15:20
Ariel CabibAriel Cabib
1,8181616 silver badges1010 bronze badges
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Integer division with remainder in JavaScript?
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Another one, whose purpose I just spent the last 20 minutes trying to figure out, is apparently a/b | 0
– BlueRaja - Danny Pflughoeft
Mar 25 '11 at 22:42
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“Could not find any information for class named ViewController”
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answered Dec 20 '14 at 9:02
Chris HarrisonChris Harrison
4,32633 gold badges2525 silver badges3434 bronze badges
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