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Python syntax for “if a or b or c but not all of them”
...se module. Don't bother writing a complex if statement, instead prefer to setup your argument parser something like this:
#!/usr/bin/env python
import argparse as ap
parser = ap.ArgumentParser()
parser.add_argument('--foo', nargs=3, default=['x', 'y', 'z'])
args = parser.parse_args()
print(args.fo...
When should I choose Vector in Scala?
It seems that Vector was late to the Scala collections party, and all the influential blog posts had already left.
6 Answ...
Javascript split regex question
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Android ClassNotFoundException: Didn't find class on path
I'm not really sure what is causing it as it is correctly listed in the manifest:
37 Answers
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count (non-blank) lines-of-code in bash
In Bash, how do I count the number of non-blank lines of code in a project?
18 Answers
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How do I remove repeated elements from ArrayList?
...s. The easiest way to remove repeated elements is to add the contents to a Set (which will not allow duplicates) and then add the Set back to the ArrayList:
Set<String> set = new HashSet<>(yourList);
yourList.clear();
yourList.addAll(set);
Of course, this destroys the ordering of the ...
How do I run Redis on Windows?
...lding RedisWatcher myself per their instructions, but the required Wix Toolset managed to mess up my system pretty good. I won't go into it.) Fortunately they've provided all the binaries you need, just not all in one place. From the README:
So far the RedisWatcher is not carried over to 2.6. Ho...
Objective-C: Extract filename from path string
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MySQL “WITH” clause
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Update: MySQL 8.0 is finally getting the feature of common table expressions, including recursive CTEs.
Here's a blog announcing it: http://mysqlserverteam.com/mysql-8-0-labs-recursive-common-table-expressions-in-mysql-ctes/
Below is my earlier a...
Remove ActiveRecord in Rails 3
...ils/all' or require "active_record/railtie". Instead, for a standard Rails setup without ActiveRecord, it should have only the following requires:
require File.expand_path('../boot', __FILE__)
require "action_controller/railtie"
require "action_mailer/railtie"
require "active_resource/railtie"
req...