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jquery data selector
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In my case it's fine since I'm pre-populating the field on the server side and only need to consult it this way on initial load. Filter is probably just as fast (each is almost certainly slower) but this wins on readability.
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When to use PNG or JPG in iPhone development?
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On my current project, we have very large png files because of a transparency requirement. The disk IO greatly outweighs the time spent decoding a jpeg. Keep in mind PNGs are compressed also, just using a different algorithm.
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What is code coverage and how do YOU measure it?
...robably write tests for. For example, if whatever code-coverage tool shows myImportantFunction() isn't executed while running my current unit-tests, they should probably be improved.
Basically, 100% code-coverage doesn't mean your code is perfect. Use it as a guide to write more comprehensive (unit...
How to easily resize/optimize an image size with iOS?
My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'...
How to count total lines changed by a specific author in a Git repository?
...stics. The lines are not changed. To Alex: I'm talking about Git. Btw, see my comment to the original question.
– 0andriy
Jan 29 '16 at 18:11
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How to make a floated div 100% height of its parent?
...<div id='inner2'>
</div>
text
</div>
I deleted my previous answer, as it was based on too many wrong assumptions about your goal.
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Objective-C: Where to remove observer for NSNotification?
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@MobileMon The article you linked to seems to make my point. What am I missing ?
– Dirk
Jun 27 '13 at 22:58
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What is a good Hash Function?
... is a good Hash function? I saw a lot of hash function and applications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that:
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Fastest way to count exact number of rows in a very large table?
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SQL Server example (1.4 billion rows, 12 columns)
SELECT COUNT(*) FROM MyBigtable WITH (NOLOCK)
-- NOLOCK here is for me only to let me test for this answer: no more, no less
1 runs, 5:46 minutes, count = 1,401,659,700
--Note, sp_spaceused uses this DMV
SELECT
Total_Rows= SUM(st.row_count)...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...nd I personally have sought the magic that you hint at:
How can I have my cake and eat it, too? How can I play with high-level abstractions in my favorite language, then drop down to the nitty gritty of C for speed?
After a couple of years of research, my answer is Python (on C). You might w...