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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...'s utf8 permits only the Unicode characters that can be represented with 3 bytes in UTF-8. Here you have a character that needs 4 bytes: \xF0\x90\x8D\x83 (U+10343 GOTHIC LETTER SAUIL).
If you have MySQL 5.5 or later you can change the column encoding from utf8 to utf8mb4. This encoding allows stora...
How do I merge a git tag onto a branch
... I had to do git remote add upstream git@github.com/org/repo followed by git fetch --tags upstream to make it work.
– MarkHu
Jan 18 '17 at 23:54
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Context switches much slower in new linux kernels
...able all of these power saving features:
On Ubuntu 12.04, you can do this by adding them to the GRUB_CMDLINE_LINUX_DEFAULT entry in /etc/default/grub and then running update-grub. The boot parameters to add are:
intel_idle.max_cstate=0 processor.max_cstate=0 idle=poll
Here are the gory details a...
How does Access-Control-Allow-Origin header work?
... certain origins. (An origin is a domain, plus a scheme and port number.) By default, Site B's pages are not accessible to any other origin; using the Access-Control-Allow-Origin header opens a door for cross-origin access by specific requesting origins.
For each resource/page that Site B wants to...
Will Try / Finally (without the Catch) bubble the exception?
... could go wrong.
First, access to the resource could already be disabled by the caller; in that case, this code re-enables it, possibly prematurely.
Second, if DoSomethingToTheResource throws an exception, is the right thing to do to enable access to the resource??? The code that manages the reso...
What is the benefit of using Fragments in Android, rather than Views?
...e. I didn't think it was conceptually possible, but they worked around it by using a private FragmentManager through getChildFragmentManager(). Oh, and it is API 17, not 11, and available through the Support Library.
– Henry
Jul 24 '13 at 8:29
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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
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Ubuntu Users:
I had the same problem and I fixed it by installing nodejson my system independent of the gem.
on ubuntu its: sudo apt-get install nodejs
I'm using 64bit ubuntu 11.10
update:
From @Galina 's answer below I'm guessing that the latest version of nodejs is requi...
get the latest fragment in backstack
... backEntry.getName();
Fragment fragment = getFragmentManager().findFragmentByTag(tag);
You need to make sure that you added the fragment to the backstack like this:
fragmentTransaction.addToBackStack(tag);
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How do I copy to the clipboard in JavaScript?
...ryCommandSupported('copy') should return true if the command "is supported by the browser".
and document.queryCommandEnabled('copy') return true if the document.execCommand('copy') will succeed if called now. Checking to ensure the command was called from a user-initiated thread and other requiremen...
What happens to global and static variables in a shared library when it is dynamically linked?
...th globals and static variables are dynamically linked to an application.
By modules, I mean each project in a solution (I work a lot with visual studio!). These modules are either built into *.lib or *.dll or the *.exe itself.
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