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Ruby on Rails: how do I sort with two columns using ActiveRecord?

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How can I fill out a Python string with spaces?

... 731 You can do this with str.ljust(width[, fillchar]): Return the string left justified in a s...
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How to normalize a NumPy array to within a certain range?

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How to convert a byte array to a hex string in Java?

...nprintable elements. What I need is the exact hexcode in the form of: 3a5f771c 27 Answers ...
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iPhone UITextField - Change placeholder text color

...nswered Dec 4 '12 at 3:08 user1071136user1071136 15.2k22 gold badges3434 silver badges5959 bronze badges ...
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How do I read the contents of a Node.js stream into a string variable?

... answered May 16 '12 at 17:51 ControlAltDelControlAltDel 26.8k55 gold badges3939 silver badges6666 bronze badges ...
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android start activity from service

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CRON job to run on the last day of the month

...o three separate jobs: 55 23 30 4,6,9,11 * myjob.sh 55 23 31 1,3,5,7,8,10,12 * myjob.sh 55 23 28 2 * myjob.sh That will run on the 28th of February though, even on leap years so, if that's a problem, you'll need to find another way. However, it's usually both substantially...
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Accessing MVC's model property from Javascript

...n – Null Reference May 3 '13 at 14:37 1 What do you know, I've got the same error in my various p...
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Why is AJAX returning HTTP status code 0?

... | edited Apr 27 '16 at 16:14 Dušan Maďar 6,51744 gold badges2828 silver badges4747 bronze badges ...