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Rails: Adding an index after adding column
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You can run another migration, just for the index:
class AddIndexToTable < ActiveRecord::M...
XPath with multiple conditions
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251
Try:
//category[@name='Sport' and ./author/text()='James Small']
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How do I calculate a point on a circle’s circumference?
..., so rather than cycling through 0..360 degrees, you're cycling through 0..2PI radians.
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ImportError: No module named pip
OS: Mac OS X 10.7.5
Python Ver: 2.7.5
16 Answers
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When to use symbols instead of strings in Ruby?
... is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks.
Full answer
The only reason not to use them for identifiers that are generated dynamically is because of memory concerns.
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Change the Right Margin of a View Programmatically?
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edited Jun 20 at 9:12
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Open a file with Notepad in C#
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mihai
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An async/await example that causes a deadlock
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answered Feb 22 '13 at 10:37
cuonglecuongle
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
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Elliott HughesElliott Hughes
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Scripting TFS Command Line for Get Latest Version, Check Out and Check in, programmatically
I use WinXP, VS 2008 and Team Explorer to connect to Team Foundation Server.
4 Answers
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