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contenteditable change events
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I'd suggest attaching listeners to key events fired by the editable element, though you need to be aware that keydown and keypress events are fired before the content itself is changed. This won't cover every possible means of changing the content: the user can also use cut, c...
Optimising Android application before release [closed]
...ack draws more power than white on LCD screens, because the light (sourced by the backlight) starts out white and has to be actively blocked to produce black. [ scientificamerican.com/article.cfm?id=fact-or-fiction-black-is ] Bottom line: Don't count too much on this color optimization.
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How to add percent sign to NSString
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iOS 9.2.1, Xcode 7.2.1, ARC enabled
You can always append the '%' by itself without any other format specifiers in the string you are appending, like so...
int test = 10;
NSString *stringTest = [NSString stringWithFormat:@"%d", test];
stringTest = [stringTest stringByAppendingString:@"%"]...
Looping over arrays, printing both index and value
...baz
Explained
printf "%s\n" "${!foo[@]}" will print all keys separated by a newline,
printf "%s\n" "${foo[@]}" will print all values separated by a newline,
paste <(cmd1) <(cmd2) will merge output of cmd1 and cmd2 line by line.
Tunning
This could be tunned by -d switch:
paste -d : <...
Visual Studio debugger - Displaying integer values in Hex
... decimal display on a per-variable basis in the Visual Studio watch window by appending a debugger format specifier to the variable name. In the watch window, enter:
myInt,h
myInt,d
The other very useful format specifiers are ac (see footnote) for 'always calculate', and nq for displaying with 'n...
Dialog to pick image from gallery or from camera
...allery:
Intent pickPhoto = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickPhoto , 1);//one can be replaced with any action code
onActivityResult code:
protected void onActivityResult(int requestCode, int result...
MySql server startup error 'The server quit without updating PID file '
...f /usr/local/var/mysql/
ls -laF /usr/local/var/mysql/
if it is owner by root you should change it mysql or your_user
sudo chown -R mysql /usr/local/var/mysql/
share
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improve this answe...
What's a 3D doing in this HTML?
I'm trying to duplicate a mailer I got into my gmail by taking a look at its code. I see a lot of this in multiple source viewers:
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Designer Added then removed by Visual Studio on load/unload
...undo pending changes to the project file and then manually added new files by right click -> add existing files to the project.
While doing this the tag < SubType >Designer< /SubType > doesn't come.
Hope this will help someone. Hence posting this.
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How can I solve a connection pool problem between ASP.NET and SQL Server?
..., they remain blocked until the .NET garbage collector closes them for you by calling their Finalize() method.
You want to make sure that you are really closing the connection. For example the following code will cause a connection leak, if the code between .Open and Close throws an exception:
var ...