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cancelling queued performSelector:afterDelay calls
...selector
[self performSelector:@selector(mySel:) withObject:nil afterDelay:5.0];
// cancel the above call (and any others on self)
[NSObject cancelPreviousPerformRequestsWithTarget:self];
See apple docs, it's right at the end of the performSelector:withObject:afterDelay: description.
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Name of this month (Date.today.month as name)
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edited Jan 23 '15 at 23:15
answered Jan 30 '11 at 17:18
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What is context in _.each(list, iterator, [context])?
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AJAX post error : Refused to set unsafe header “Connection”
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Wladimir PalantWladimir Palant
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sed error: “invalid reference \1 on `s' command's RHS”
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Don't you need to actually capture for that to work? i.e. for variant 2:
-r -e "s/WARNING: (\(...
String.Join method that ignores empty strings?
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Simple basic explanation of a Distributed Hash Table (DHT)
...half of 3's keyspace, so now it deals with 26-30 and node 3 deals with 21-25.
There are many other overlay structures such as this that use content-based routing to find the right node on which to store a key. Locating a key in a ring requires searching round the ring one node at a time (unless y...
Select 50 items from list at random to write to file
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If the list is in random order, you can just take the first 50.
Otherwise, use
import random
random.sample(the_list, 50)
random.sample help text:
sample(self, population, k) method of random.Random instance
Chooses k unique random elements from a population sequence.
Ret...