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Why should I use Deque over Stack?
...tack<Integer> stack = new Stack<>();
stack.push(1);
stack.push(2);
stack.push(3);
System.out.println(new ArrayList<>(stack)); // prints 1, 2, 3
Deque<Integer> deque = new ArrayDeque<>();
deque.push(1);
deque.push(2);
deque.push(3);
System.out.println(new ArrayList<...
Convert NSArray to NSString in Objective-C
I am wondering how to convert an NSArray [@"Apple", @"Pear ", 323, @"Orange"] to a string in Objective-C .
9 Answers
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Can I redirect the stdout in python into some sort of string buffer?
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211
from cStringIO import StringIO # Python3 use: from io import StringIO
import sys
old_stdout =...
Converting a JS object to an array using jQuery
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432
var myObj = {
1: [1, 2, 3],
2: [4, 5, 6]
};
var array = $.map(myObj, function(value, in...
Pointers in Python?
... know Python doesn't have pointers, but is there a way to have this yield 2 instead
9 Answers
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What is the advantage of using abstract classes instead of traits?
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answered Jan 2 '10 at 11:53
Mushtaq AhmedMushtaq Ahmed
6,06222 gold badges1515 silver badges1414 bronze badges
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Python mysqldb: Library not loaded: libmysqlclient.18.dylib
I just compiled and installed mysqldb for python 2.7 on my mac os 10.6. I created a simple test file that imports
15 Answe...
Capturing Groups From a Grep RegEx
...ing stored in a variable
else
echo "$f doesn't match" >&2 # this could get noisy if there are a lot of non-matching files
fi
done
It's better to put the regex in a variable. Some patterns won't work if included literally.
This uses =~ which is Bash's regex match operator. ...
How to declare an array in Python?
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edited May 22 '16 at 20:21
Zanon
20.3k1414 gold badges9595 silver badges106106 bronze badges
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Is there an R function for finding the index of an element in a vector?
...rks on vectors :
x <- sample(1:10)
x
# [1] 4 5 9 3 8 1 6 10 7 2
match(c(4,8),x)
# [1] 1 5
match only returns the first encounter of a match, as you requested. It returns the position in the second argument of the values in the first argument.
For multiple matching, %in% is the way to...