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Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
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@PeterLawrey - I now conducted my tests and posted results on StackOverflow, but within the Question itself, as it still remains "locked" and can't post an answer. If you could, please add your vote to re-open the question. The results are in...
What does the exclamation mark mean in a Haskell declaration?
...ly Just (5+5), leaving the thunk inside unevaluated. This is important to know, though I think that all the implications of this go rather beyond the scope of this question.
You can annotate function arguments in the same way, if you enable the BangPatterns language extension:
f x !y = x*y
f (1+...
Order data frame rows according to vector with specific order
...the *_join functions in dplyr are really nice. End up using these a lot by now as well
– Rappster
Jun 24 '16 at 9:21
I...
How to convert IPython notebooks to PDF and HTML?
...eX (.pdf). Otherwise follow these two steps.
For HTML output, you should now use Jupyter in place of IPython and select File -> Download as -> HTML (.html) or run the following command:
jupyter nbconvert --to html notebook.ipynb
This will convert the Jupyter document file notebook.ipyn...
Can I use git diff on untracked files?
...ob to the index at that location. The upshot is that your "untracked" file now becomes a modification to add all the content to this zero-length file, and that shows up in the "git diff" output.
git diff
echo "this is a new file" > new.txt
git diff
git add -N new.txt
git diff
diff --git a/new....
Insert current date in datetime format mySQL
...YSQL's functions.
mysql_query("INSERT INTO `table` (`dateposted`) VALUES (now())");
If you need to use PHP to do it, the format it Y-m-d H:i:s so try
$date = date('Y-m-d H:i:s');
mysql_query("INSERT INTO `table` (`dateposted`) VALUES ('$date')");
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Dynamic cell width of UICollectionView depending on label width
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You cannot imagine how I thank you! That really works. Now I only need to resolve [cell.myLabel sizeToFit] problem, because it appears in its full size only after scrolling. But I have not been even close to your solution.
– pulp
Apr 17 '14 ...
jquery-ui sortable | How to get it work on iPad/touchdevices?
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Found a solution (only tested with iPad until now!)!
http://touchpunch.furf.com/content.php?/sortable/default-functionality
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Intro to GPU programming [closed]
...e for, among other things, GPUs. It allows one to write the code without knowing what GPU it will run on, thereby making it easier to use some of the GPU's power without targeting several types of GPU specifically. I suspect it's not as performant as native GPU code (or as native as the GPU manufa...
FormData.append(“key”, “value”) is not working
...ve years later: In some newer browsers, this is no longer true and you can now see the data provided to FormData in addition to just stuffing data into it. See the accepted answer for more info.
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