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How can I convert NSDictionary to NSData and vice versa?
... error:&error];
The latest returns id, so its a good idea to check the returned object type after you cast (here i casted to NSDictionary).
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Generate an integer that is not among four billion given ones
... repeat, either. (Following the question actually asked is probably a good idea in an interview, right? ;-))
– Christopher Creutzig
Aug 24 '11 at 6:24
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What is a build tool?
... command line, either inside an IDE or completely separate from it.
The idea is to separate the work of compiling and packaging your code from creation, debugging, etc.
A build tool can be run on the command or inside an IDE, both triggered by you. They can also be used by continuous integratio...
How many files can I put in a directory?
... find(1) and/or xargs(1) for these cases. For the same reason it's a good idea to use such tools in scripts instead of command line expansion.
– Dave C
Jan 21 '09 at 21:25
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ruby inheritance vs mixins
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I think mixins are a great idea, but there's another problem here that nobody has mentioned: namespace collisions. Consider:
module A
HELLO = "hi"
def sayhi
puts HELLO
end
end
module B
HELLO = "you stink"
def sayhi
puts HELLO
end...
Jsoup SocketTimeoutException: Read timed out
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Setting an infinite timeout is a bad idea in most cases. Use a long timeout, but always specify one. See MarcoS answer.
– stepanian
Dec 20 '14 at 22:46
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Sync data between Android App and webserver [closed]
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Your idea is brilliant but still can't understand table design properly. Along with rest services and proper synchronization service it works
– Ahesanali Suthar
Jan 1 '17 at 13:58
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Android map v2 zoom to show all the markers
...rlier version this can be achieved from zoomToSpan() but in v2 I have no idea how about doing that. Further, I know the radius of the circle that needs to be visible.
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Vim Regex Capture Groups [bau -> byau : ceu -> cyeu]
...h it, too. I'm still skeptical whether using Vim without Ex mode is a good idea, but you could easily build your own search-and-replace dialog (internally powered by :s) via inputdialog() and a bit of Vimscript.
– Ingo Karkat
May 6 '15 at 8:32
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Best implementation for hashCode method for a collection
...uted hash code cannot be always unique :) Is a hashcode. However I got the idea: the prime number has only one multiplier, while non-prime has at least two. That creates an extra combination for multiplication operator to result the same hash, i.e. cause collision.
– dma_k
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