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Should I use string.isEmpty() or “”.equals(string)?
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The main benefit of "".equals(s) is you don't need the null check (equals will check its argument and return false if it's null), which you seem to not care about. If you're not worried about s being null (or are otherwise checking for it), I would definitely use ...
Installing in Homebrew errors
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sudo chown -R $USER /usr/local
You'll have to give yourself ownership of /usr/local/ using that line right there. I had to do this myself after using the ruby one-liner at the top of the official docs to install Homebrew. Wor...
What is the maximum possible length of a .NET string?
What is the longest string that can be created in .NET? The docs for the String class are silent on this question as far as I can see, so an authoritative answer might require some knowledge of internals. Would the maximum change on a 64-bit system?
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Access parent DataContext from DataTemplate
...ementName and works quite well, as long as you respect your own naming and don't have heavy reuse of templates/styles across components:
<ItemsControl x:Name="level1Lister" ItemsSource={Binding MyLevel1List}>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Conten...
What is the meaning of “non temporal” memory accesses in x86
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Non-Temporal SSE instructions (MOVNTI, MOVNTQ, etc.), don't follow the normal cache-coherency rules. Therefore non-temporal stores must be followed by an SFENCE instruction in order for their results to be seen by other processors in a timely fashion.
When data is produced and ...
What is the exact problem with multiple inheritance?
...riding.
Let's say have two classes A and B, both of which define a method doSomething. Now you define a third class C, which inherits from both A and B, but you don't override the doSomething method.
When the compiler seed this code...
C c = new C();
c.doSomething();
...which implementation of ...
How can I find all of the distinct file extensions in a folder hierarchy?
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On Windows, this works better and is much faster than find: dir /s /b | perl -ne 'print $1 if m/\.([^^.\\\\]+)$/' | sort -u
– Ryan Shillington
Dec 9 '13 at 22:30
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How to change CSS using jQuery?
...e that are suggesting that the property name is the issue. The jQuery API documentation explicitly states that either notation is acceptable: http://api.jquery.com/css/
The actual problem is that you are missing a closing curly brace on this line:
$("#myParagraph").css({"backgroundColor":"black",...
What is the best way to unit test Objective-C code?
...e way Cocoa is structured makes it relatively straightforward, because you don't have to spin an event loop or anything like that in most cases.
Trust, but verify.
Unit testing Cocoa user interfaces: Target-Action
Unit testing Cocoa user interfaces: Cocoa Bindings
This makes it possible to do te...
Get Element value with minidom with Python
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When I do name[0].nodeValue is gives back "None", just to test I passed it name[0].nodeName and it gave me "name" which is correct. Any ideas?
– RailsSon
Nov 25 '08 at 14:09
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