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How do I get the name of a Ruby class?
How can I get the class name from an ActiveRecord object?
5 Answers
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Changing the case of a string in Eclipse
How do I make a lowercase string uppercase using Eclipse? I want to select a string and either uppercase it or lowercase it. Is there a shortcut for doing this?
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How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
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E731 do not assign a lambda expression, use a def
I get this pep8 warning whenever I use lambda expressions. Are lambda expressions not recommended? If not why?
4 Answers
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ruby system command check exit code
I have a bunch of system calls in ruby such as the following and I want to check their exit codes simultaneously so that my script exits out if that command fails.
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grep output to show only matching file
What is the option for grep that will allow me only to print the matching file and not the line within a file that matches the criteria?
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The order of elements in Dictionary
My question is about enumerating Dictionary elements
6 Answers
6
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Serializing a list to JSON
I have an object model that looks like this:
6 Answers
6
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How to post JSON to PHP with curl
I may be way off base, but I've been trying all afternoon to run the curl post command in this recess PHP framework tutorial. What I don't understand is how is PHP supposed to interpret my POST, it always comes up as an empty array.
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Is PHP's count() function O(1) or O(n) for arrays?
Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved?
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