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@synthesize vs @dynamic, what are the differences?
...s itself but somewhere else (like the superclass or will be provided at runtime).
Uses for @dynamic are e.g. with subclasses of NSManagedObject (CoreData) or when you want to create an outlet for a property defined by a superclass that was not defined as an outlet.
@dynamic also can be used to del...
Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
...uch as each and map when iterating through some data structure, and Fixnum#times method, when you need to loop an exact number of times.
Actually, as far as I have seen, most of the time +=1 is used by people freshly migrated to Ruby from C-style languages.
In short, it's really questionable if m...
Stock ticker symbol lookup API [closed]
...milion/Modules/StockQuoter/StockQuoter.py
The current price ("l") is real-time and the delay is on par with Yahoo Finance. There are a few quirks you should be aware of. A handful of stocks require an exchange prefix. For example, if you query "BTIM", you'll get a "Bad Request" error but "AMEX:B...
How do I list all cron jobs for all users?
...hp5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm
47 */8 * * * root rsync -axE --delete --ignore-errors / /mirror/ >/dev/null
17 1 * * * root /etc/cron.daily/apt
17 1 * * * root /etc/cron.daily/apti...
How do I change my Ruby version using RVM?
...
Yeah its working. But every time I restart my machine I have to give above mentioned commands. If I do not provide the commands it says rvm is not a function.
– Apurva Mayank
Mar 22 '12 at 5:42
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How to search and replace globally, starting from the cursor position and wrapping around the end of
... pattern from the top (where it was at the moment of pressing q the second time). The latter leaves the cursor at the last occurrence that was replaced (just before the first q was pressed).
– ib.
Mar 20 '14 at 21:40
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Finding current executable's path without /proc/self/exe
...le_name(), if present, may help.
If realpath() doesn't exist at compile time, you might borrow a copy from a permissively licensed library distribution, and compile it in yourself rather than reinventing the wheel. Fix the potential buffer overflow (pass in sizeof output buffer, think strncpy() ...
Why is @autoreleasepool still needed with ARC?
... then you'd be releasing 100000000 objects later on rather than 10000 each time round the outer for-loop.
Update:
Also see this answer - https://stackoverflow.com/a/7950636/1068248 - for why @autoreleasepool is nothing to do with ARC.
Update:
I took a look into the internals of what's going on her...
How to use sed to replace only the first occurrence in a file?
...pression #1, char 0: no previous regular expression (GNU), because, at the time the 1st line is being processed (due to line number 1 starting the range), no regex has been applied yet, so // doesn't refer to anything.
With the exception of GNU sed's special 0,/re/ syntax, any range that starts with...
How can I parse a YAML file from a Linux shell script?
...r my use case, since it answered the question better than any other at the time. This can definitely be expanded.
– Curtis Blackwell
Nov 27 '13 at 13:37
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