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ActiveRecord.find(array_of_ids), preserving order
When you do Something.find(array_of_ids) in Rails, the order of the resulting array does not depend on the order of array_of_ids .
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Building a notification system [closed]
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(Add time fields where you see fit)
This is basically for grouping changes per object, so that you could say "You have 3 friend requests". And grouping per actor is useful, so that you could say "User James Bond made changes in your bed". This also gives ability to translate...
Calculate difference between two dates (number of days)?
... a sense that inclusive both dates it returns a day less in difference. It all depends upon the perspective.
– Fahad Abid Janjua
Sep 3 '13 at 6:52
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How to make the hardware beep sound in Mac OS X 10.6
...ble hardware. Before most computers had sound cards, most machines had a small speaker or piezo buzzer connected to one of the channels of a timer chip. This could be used to generate simple tones or beeps. Even after many computers integrated sound cards, it remained common for quite some time for ...
Array.push() if does not exist?
...: Computes the union of the passed-in arrays: the list of unique items, in order, that are present in one or more of the arrays.
_.union([1, 2, 3], [101, 2, 1, 10], [2, 1]);
=> [1, 2, 3, 101, 10]
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When and why to 'return false' in JavaScript?
...lling event.preventDefault() or setting event.returnValue = false (IE); in order to stop the event from bubbling, you'll have to call event.stopPropagation() or setting event.cancelBubble = true (IE)
– Christoph
May 12 '09 at 23:55
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Syntax error on print with Python 3 [duplicate]
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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How should I organize Python source code? [closed]
...the file -- make this worse, beyond the compiler's requirements. Keep it orderly, and a hierarchy is useful, but try to avoid make-work.
– Roboprog
Dec 4 '09 at 20:30
add a ...
What are the differences between Perl, Python, AWK and sed? [closed]
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In order of appearance, the languages are sed, awk, perl, python.
The sed program is a stream editor and is designed to apply the actions from a script to each line (or, more generally, to specified ranges of lines) of the inpu...
jQuery $(document).ready and UpdatePanels?
...n the page. You shouldn't need to do anything other than the code above in order to use it as long as the UpdatePanel is on the page.
If you need more detailed control, this event passes arguments similar to how .NET events are passed arguments (sender, eventArgs) so you can see what raised the eve...