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Difference between \A \z and ^ $ in Ruby regular expressions
In the documentation I read:
4 Answers
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What does && mean in void *p = &&abc;
... &&abc; . What is the significance of && here?
I know about rvalue references but I think && used in this context is different. What does && indicate in void *p = &&abc; ?
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How can I access a JavaScript object which has spaces in the object's key?
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Use ECMAscripts "bracket notation":
myTextOptions[ 'character names' ].kid;
You can use that notation either way, reading & writting.
For more information read out here:
https://developer.mozilla.org/en-US/docs/Web/...
Why Collections.sort uses merge sort instead of quicksort?
We know that quick sort is the fastest sorting algorithm.
1 Answer
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Rails “validates_uniqueness_of” Case Sensitivity
Here is the model (I am using SQLLite3):
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Difference between Document-based and Key/Value-based databases?
I know there are three different, popular types of non-sql databases.
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What does Html.HiddenFor do?
Although I have read the documentation on Html.HiddenFor, I've not grasped what is it used for...
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Best way to use html5 data attributes with rails content_tag helper?
The issue, of course, is that ruby symbols don't like hyphens. So something like this obviously won't work:
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Xcode 4 and Core Data: How to enable SQL Debugging
I'm working on a universal iOS app and I'd like to see the raw SQL in the logs when I'm debugging. There is some info in this blog post about how to enable raw SQL logging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4.
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In Eclipse, can I have multiple Console views at once, each showing a different Console?
I'm working on some applications that, in debug mode, log to the console. I'd like to run and debug them from inside of Eclipse, and view the console for each one simultaneously. However, I have a single Console tab that shows a single Console output at a time. Is there a way I can split the console...