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Difference between document.addEventListener and window.addEventListener?
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The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested...
Ruby equivalent of virtualenv?
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RVM works closer to how virtualenv works since it lets you sandbox different ruby versions and their gems, etc.
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How do you remove duplicates from a list whilst preserving order?
...o seen_add instead of just calling seen.add? Python is a dynamic language, and resolving seen.add each iteration is more costly than resolving a local variable. seen.add could have changed between iterations, and the runtime isn't smart enough to rule that out. To play it safe, it has to check the o...
How do I update the password for Git?
I'm using BitBucket with Xcode and Git for version control, and recently I changed all of my passwords ( thanks Adobe! ).
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How do I resolve git saying “Commit your changes or stash them before you can merge”?
...made some updates on my local machine, pushed them to a remote repository, and now I'm trying to pull the changes to the server and I get the message;
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Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...grated a solution that is currently targeting .NET 4.0 in VS2010 to VS2012 and now I would like to re-target it to .Net 4.5
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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
...hat does going with a document based NoSQL option buy you over a KV store, and vice-versa?
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Fastest way to check if a value exists in a list
...to know if a value exists in a list (a list with millions of values in it) and what its index is?
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Why isn't vector a STL container?
...eyers's book Effective STL: 50 Specific Ways to Improve Your Use of the Standard Template Library says to avoid vector <bool> as it's not an STL container and it doesn't really hold bool s.
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What is the HTML tabindex attribute?
...te responsible for two things:
it sets the order of "focusable" elements and
it makes elements "focusable".
In my mind the second thing is even more important than the first one. There are very few elements that are focusable by default (e.g. <a> and form controls). Developers very often a...