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“Default Activity Not Found” on Android Studio upgrade
I upgraded IntelliJ Idea from 12.0.4 to 12.10.
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npm windows install globally results in npm ERR! extraneous
...I am trying some "cookbook-example" on the site ' http://tech.pro/tutorial/1190/package-managers-an-introductory-guide-for-the-uninitiated-front-end-developer#front_end_developers '.
You should not have to look there now, but I thought it could be good to share the site.
So far so good, til it comes...
How to calculate number of days between two given dates?
If I have two dates (ex. '8/18/2008' and '9/26/2008' ), what is the best way to get the number of days between these two dates?
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How to use int.TryParse with nullable int? [duplicate]
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answered Aug 2 '10 at 18:44
Jon SkeetJon Skeet
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undefined method `source_index' for Gem:Module (NoMethodError)
...to this problem myself while trying to upgrade an older Rails app from REE 1.8.7 to 1.9.3-p385. Oddly, Ruby 1.9.3-p327 works just fine. What it came down to was ruby-1.9.3-p385 had installed RubyGems version 2.0.2 for me, and 1.9.3-p327 has RubyGems v1.8.23 installed.
Gem.source_index has been depr...
python list in sql query as parameter
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The tilde operator in Python
...complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support this o...
How do I check if string contains substring? [duplicate]
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Why does Math.Round(2.5) return 2 instead of 3?
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