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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...e requests for visible cells, caching to avoid redundant network requests, etc.). I'm unclear what else you expected in response to the question of "how do I stop the flickering images in my table view".
– Rob
Sep 7 '16 at 20:09
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Freely convert between List and IEnumerable
...(y), selector(x)));
}
Then you can use:
list.Sort(x=>x.SomeProp); // etc
This updates the existing list in the same way that List<T>.Sort usually does.
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B-Tree vs Hash Table
...lso tree algorithms are usually easier to maintain, grow with data, scale, etc.
Hash indexes work with pre-defined hash sizes, so you end up with some "buckets" where the objects are stored in. These objects are looped over again to really find the right one inside this partition.
So if you have sma...
How to use timeit module
...tter_minmod arr1
python -m timeit -s "$SETUP" "better_minmod(arr1)"
... etc
This can take a bit longer due to the multiple initialisations, but normally that's not a big deal.
But what if you want to use timeit inside your module?
Well, the simple way is to do:
def function(...):
...
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Pointer to pointer clarification
...ay
*ipp = ip2;
The * operator turns a pointer back into a variable. We fetch the value of ipp, which is "pointer to ip1 and turn it into a variable. What variable? ip1 of course!
Therefore this is simply another way of saying
ip1 = ip2;
So we fetch the value of ip2. What is it? "pointer to j...
git: Show index diff in commit message as comment
...t, and -s diff sets the color scheme appropriately (red for deleted lines, etc.):
[core]
editor = C:/Windows/system32/notepad.exe -s diff
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The difference between try/catch/throw and try/catch(e)/throw e
...eptinons - OutOfRangeException comes to mind - or need to log the message, etc. The first seems to be a wildcard exception handler similar to try{}catch(...){} in c++.
– 3Dave
Nov 8 '09 at 17:22
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Why can I initialize a List like an array in C#?
...want, for example to prevent over-sizing the List<T> during growing, etc:
// Notice, calls the List constructor that takes an int arg
// for initial capacity, then Add()'s three items.
List<int> a = new List<int>(3) { 1, 2, 3, }
Note that the Add() method need not take a single ...
What blocks Ruby, Python to get Javascript V8 speed? [closed]
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There are lots of well-known techniques (JIT, modern garbage collector, etc) that could be used to speed up the CPython implementation but all would require substantial changes to the API, breaking most of the extensions in the process. CPython would be faster, but a lot of what makes Python so ...
What is the Invariant Culture?
...tion where you need to generate controller names, URL's, delegate names ...etc. and need things to act naturally and universally among all users.
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