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How do I remove blank elements from an array?
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There are many ways to do this, one is reject
noEmptyCities = cities.reject { |c| c.empty? }
You can also use reject!, which will modify cities in place. It will either return cities as its return value if it rejected something, or nil if no rejections are made. That can b...
Node.js version on the command line? (not the REPL)
I want to get the version of Node.js on the command line. I'm expecting to run a command like:
14 Answers
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virtualenvwrapper and Python 3
I installed python 3.3.1 on ubuntu lucid and successfully created a virtualenv as below
9 Answers
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How do I detect if Python is running as a 64-bit application? [duplicate]
I'm doing some work with the windows registry. Depending on whether you're running python as 32-bit or 64-bit, the key value will be different. How do I detect if Python is running as a 64-bit application as opposed to a 32-bit application?
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How to assert greater than using JUnit Assert?
... String is the message in case of failure; you can use that if you want to print that such-and-such wasn't greater than so-and-so.
You could also add hamcrest-all as a dependency to use matchers. See https://code.google.com/p/hamcrest/wiki/Tutorial:
import static org.hamcrest.MatcherAssert.assertT...
Removing items from a list [duplicate]
While looping through a list, I would like to remove an item of a list depending on a condition. See the code below.
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Where does the .gitignore file belong?
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Put .gitignore in the working directory. It doesn't work if you put it in the .git (repository) directory.
$ ls -1d .git*
.git
.gitignore
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How to manually trigger validation with jQuery validate?
...tton and try the following:
$("#myform").validate().element("#i1");
Examples here:
https://jqueryvalidation.org/Validator.element
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Mongoimport of json file
... json file consisting of about 2000 records. Each record which will correspond to a document in the mongo database is formatted as follows:
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Intellij IDEA: Hotkey for “scroll from source”
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In the latest IntelliJ IDEA, there is a keymap entry called "Select in Project View" with no default shortcut. Just add a shortcut key to it. No need for a plugin.
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