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Are loops really faster in reverse?
I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
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How do I install an old version of Django on virtualenv?
This may sound like a stupid question, since the very purpose of virtualenv is to this exactly: Installing some specific version of a package (in this case Django) inside the virtual environment. But it's exactly what I want to do, and I can't figure it out.
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How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
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cannot find zip-align when publishing app
This is the message I received when I tried to publish my app. I'm using the latest revision of Android SDK Tools (23 which was released today) and SDK Platform-tools (20 which was also released today). I got an APK out of it, but if I tried to upload it to Google Play I got an error complaining tha...
What is a practical use for a closure in JavaScript?
I'm trying my hardest to wrap my head around JavaScript closures.
22 Answers
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Why is “if not someobj:” better than “if someobj == None:” in Python?
I've seen several examples of code like this:
9 Answers
9
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How do you get AngularJS to bind to the title attribute of an A tag?
The intent is to have a product name appear in the tooltip of a thumbnail.
Browsers do not create a tooltip from "ng-title" or "ng-attr-title."
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How to count items in a Go map?
If I want to count the items in the map structure, what statement should I use?
I tried to use
1 Answer
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How do I run a single test with Nose in Pylons
I have a Pylons 1.0 app with a bunch of tests in the test/functional directory.
I'm getting weird test results and I want to just run a single test.
The nose documentation says I should be able to pass in a test name at the command line but I get ImportErrors no matter what I do
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In Git, what is the difference between origin/master vs origin master?
I know, origin is a term for the remote repository and master is the branch there.
6 Answers
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