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Checking if a variable is defined?
How can I check whether a variable is defined in Ruby? Is there an isset -type method available?
14 Answers
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Detect enter press in JTextField
Is it possible to detect when someone presses Enter while typing in a JTextField in java? Without having to create a button and set it as the default.
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Apply CSS styles to an element depending on its child elements
Is it possible to define a CSS style for an element, that is only applied if the matching element contains a specific element (as the direct child item)?
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Git pull results in extraneous “Merge branch” messages in commit log
I'm working with another developer on a project, and we're using Github as our remote repo. I'm on a Mac using git 1.7.7.3, he's on Windows using git 1.7.6.
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What is meant by Ems? (Android TextView)
What is meant by Ems (related to a TextView)? For example in
6 Answers
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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
I've been a bad kid and used the following syntax in my partial templates to set default values for local variables if a value wasn't explicitly defined in the :locals hash when rendering the partial --
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CoffeeScript on Windows?
How can I try CoffeeScript on Windows?
13 Answers
13
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Get child node index
In straight up javascript (i.e., no extensions such as jQuery, etc.), is there a way to determine a child node's index inside of its parent node without iterating over and comparing all children nodes?
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How do I run a Node.js application as its own process?
What is the best way to deploy Node.js?
16 Answers
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