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When should I use require() and when to use define()?

I have being playing around with requirejs for the last few days. I am trying to understand the differences between define and require. ...
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Redis strings vs Redis hashes to represent JSON: efficiency?

I want to store a JSON payload into redis. There's really 2 ways I can do this: 3 Answers ...
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How to use Active Support core extensions

I have Active Support 3.0.3 installed and Rails 3.0.3 with Ruby 1.8.7. 5 Answers 5 ...
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How do I load a file into the python console?

...nuously copying/pasting into the python console. Is there a load command or something I can run? e.g. load file.py 8 Ans...
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Switching from zsh to bash on OSX, and back again?

...rning to develop in Rails, and have discovered the power of zsh. However, for some of my other tasks, I wish to use normal Bash. Although they are the same, I just feel comfortable with the lay out of bash in some situations. How do I switch back and forth, or turn zsh on and off? Thanks! ...
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Non-static variable cannot be referenced from a static context

...et, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with the class "car". The class contains which is similar to all cars. Think of it as a template or an idea. At the same time, the car you see is an instance of the class "ca...
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find -exec cmd {} + vs | xargs

Which one is more efficient over a very large set of files and should be used? 3 Answers ...
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FixedThreadPool vs CachedThreadPool: the lesser of two evils

I have a program that spawns threads (~5-150) which perform a bunch of tasks. Originally, I used a FixedThreadPool because this similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the thr...
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Where am I? - Get country

... This will get the country code set for the phone (phones language, NOT user location): String locale = context.getResources().getConfiguration().locale.getCountry(); can also replace getCountry() with getISO3Country() to get a 3 letter ISO code for the cou...
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How do I check out a specific version of a submodule using 'git submodule'?

How would I go about adding a Git submodule for a specific tag or commit? 2 Answers 2 ...