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Deep copying an NSArray
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As the Apple documentation about deep copies explicitly states:
If you only need a one-level-deep copy:
NSMutableArray *newArray = [[NSMutableArray alloc]
initWithArray:oldArray copyItems:YES];
The above c...
Threading pool similar to the multiprocessing Pool?
...the multiprocessing module, however it is hidden somewhat and not properly documented.
It can be imported via
from multiprocessing.pool import ThreadPool
It is implemented using a dummy Process class wrapping a python thread. This thread-based Process class can be found in multiprocessing.dummy...
Input from the keyboard in command line application
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The correct way to do this is to use readLine, from the Swift Standard Library.
Example:
let response = readLine()
Will give you an Optional value containing the entered text.
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Why does Javascript getYear() return 108?
Why does this javascript return 108 instead of 2008? it gets the day and month correct but not the year?
14 Answers
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Can an abstract class have a constructor?
...nathon was trying to say is that a public constructor on an abstract class doesn't make any sense because you can't instantiate an abstract class directly (can only instantiate through a derived type that itself is not marked as abstract).
– Hobo Spider
Apr 17 ...
What does asterisk * mean in Python? [duplicate]
Does * have a special meaning in Python as it does in C? I saw a function like this in the Python Cookbook:
5 Answers
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How to remove all whitespace from a string?
...emove all types of whitespace, use:
gsub("[[:space:]]", "", x) # note the double square brackets
## [1] "xy" "←→" "xy" NA
gsub("\\s", "", x) # same; note the double backslash
library(regex)
gsub(space(), "", x) # same
"[:space:]" is an R-specific regular expression group matc...
Plot two histograms on single chart with matplotlib
...w I wanted to superpose data from another file in the same histogram, so I do something like this
12 Answers
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Facebook Like Button - how to disable Comment pop up?
...he Facebook (fbml) Like button I've placed on my site. Is this possible to do? I can't find any details in the documentation.
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What is the purpose of backbone.js?
I tried to understand the utility of backbone.js from its site http://documentcloud.github.com/backbone , but I still couldn't figure out much.
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