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How To Save Canvas As An Image With canvas.toDataURL()?
...ename could be attached to the data, but I've found no way to do that. For now, you have to specify the filename yourself."
– SColvin
Sep 13 '13 at 0:14
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Painless way to install a new version of R?
...where in a standard library outside the main R tree. So all you have to do now is make sure you find that library and link to it, if that didn't happen by itself.
– Joris Meys
Apr 15 '11 at 15:58
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is_file or file_exists in PHP
...e or directory. So it would depend entirely on your needs. If you want to know specifically if it's a file or not, use is_file(). Otherwise, use file_exists().
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How to reshape data from long to wide format
...s this simply, with gather()/spread() being the terms for melt/cast.
Edit: Now, in 2019, tidyr v 1.0 has launched and set spread and gather on a deprecation path, preferring instead pivot_wider and pivot_longer, which you can find described in this answer. Read on if you want a brief glimpse into th...
android studio 0.4.2: Gradle project sync failed error
...em on the Android Studio feedback site, they found a solution for me. I am now using Gradle 1.10 and Android Studio 0.4.3.
Here is the link to the page with a description of how I fixed mine:
https://code.google.com/p/android/issues/detail?id=65219
Hope this helps!
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Understanding keystore, certificates and alias
...the public key (the certificate) for that alias is embedded into the APK.
Now to answer your question, you can only release an update to an application that was signed with the alias 'foo' by signing the update again with the same alias. Losing the keystore where your alias is stored would prevent ...
How to have jQuery restrict file types on upload?
...t button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
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Pythonic way to check if a list is sorted or not
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Ah, that's an unpleasant surprise! I've fixed it now. Thanks!
– Alexandre Vassalotti
Aug 6 '13 at 0:54
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Tmux vs. iTerm2 split panes
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FWIW, now iTerm2 can remember your opened sessions (even with the screen output). So it will reopen everything even after rebooting the computer.
– Aziz Alto
Dec 30 '16 at 4:52
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How to use pull to refresh in Swift?
... a PRETTY COOL feature that has been included since iOS 10, which is:
For now, UIRefreshControl is directly supported in each of UICollectionView, UITableView and UIScrollView!
Each one of these views have refreshControl instance property, which means that there is no longer a need to add it as a ...