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Remove file from SVN repository without deleting local copy
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Deleting files and folders
If you want to delete an item from the repository, but keep it locally as an unversioned file/folder, use Extended Context Menu → Delete (keep local). You have to hold the Shift key while right clicking on the item in the e...
Convert varchar to uniqueidentifier in SQL Server
...hema for, contains a column defined as varchar(50) which stores uniqueidentifiers in the format 'a89b1acd95016ae6b9c8aabb07da2010' (no hyphens)
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Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...SArray arrayWithObject:backItem]];
navItem.leftBarButtonItem = backItem;
If you're doing this on a toolbar you'll have to tweak how you set the items, but that depends on the rest of your code and I leave that as an exercise for the reader. :P This sample worked for me (compiled & run).
Blah ...
Rails migrations: Undo default setting for a column
...name, column_name, default)
Sets a new default value for a column.
If you want to set the default value
to NULL, you are out of luck. You need
to DatabaseStatements#execute the
appropriate SQL statement yourself.
Examples
change_column_default(:suppliers, :qualification, 'new')
chan...
Can you write nested functions in JavaScript?
I am wondering if JavaScript supports writing a function within another function, or nested functions (I read it in a blog). Is this really possible?. In fact, I have used these but am unsure of this concept. I am really unclear on this -- please help!
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Difference between Google APIs (x86 System Image) and Google APIs (ARM System Image) in Android 4.4.
...vailable ran on the ARM instruction set. A system image is used to create different Android Virtual Devices (AVDs) and emulate the different Android devices in common use.
As developer workstations are usually Intel x86 based, the ARM instruction set had to be emulated as well. This resulted in poo...
In Unix, can I run 'make' in a directory without cd'ing to that directory first?
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If the reason you don't want to cd to a directory is because you need to stay in the current directory for a later task, you can use pushd and popd:
pushd ProjectDir ; make ; popd
That goes into the ProjectDir, runs make, ...
What is 'define' used for in JavaScript (aside from the obvious)?
..." form of that function. It is used to define a "module":
A module is different from a traditional script file in that it
defines a well-scoped object that avoids polluting the global
namespace. It can explicitly list its dependencies and get a handle on
those dependencies without needing ...
Deserialize from string instead TextReader
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If you have the XML stored inside a string variable you could use a StringReader:
var xml = @"<car/>";
var serializer = new XmlSerializer(typeof(Car));
using (var reader = new StringReader(xml))
{
var car = (Car)se...
How to crop an image using PIL?
...injagecko is showing you is how you crop off the top and bottom. He is specifying a rectangle for the new image. You can see that he shaves off 30 pixels from the y-value on the top and bottom points. If you offset the x values in any way, THAT would affect the left and right sides.
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