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Fastest Way to Find Distance Between Two Lat/Long Points
...h approx 5 million records and a spatial index with this method the search time is is 0.005 seconds on a old A8 processor. I know that 6371 can be replaced with 3959 to get results in miles but do the values of 111.133 and 111.320 need to be adjusted or are they universally constant?
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Why is using “for…in” for array iteration a bad idea?
I've been told not to use for...in with arrays in JavaScript. Why not?
27 Answers
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What's the proper way to install pip, virtualenv, and distribute for Python?
In my answer to SO question 4314376 , I recommended using ez_setup so that you could then install pip and virtualenv as follows:
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Hard reset of a single file
I currently have three modified files in my working directory. However I want one of them to be reset to the HEAD status.
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How can I extract the folder path from file path in Python?
I would like to get just the folder path from the full path to a file.
6 Answers
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Create Directory if it doesn't exist with Ruby
... of that extra work leaves you open to shell injection attacks (spend some time in the CERT advisories for Ruby and you'll see how common this problem is).
– mu is too short
Oct 9 '13 at 19:54
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xcode-select active developer directory error
Saw the following error when running an npm install which required node-gyp ... but could be triggered by anything which requires xcode-select .
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How to install trusted CA certificate on Android device?
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I spent a lot of time trying to find an answer to this (I need Android to see StartSSL certificates). Conclusion: Android 2.1 and 2.2 allow you to import certificates, but only for use with WiFi and VPN. There is no user interface for updat...
How did I get a value larger than 8 bits in size from an 8-bit integer?
...unning on my machine, so I haven't actually coded with GNU tools in a long time. I'll get to it... eventually. For now it's just C# in VS and trying to remember C/learn some C++ :)
– rliu
Apr 20 '13 at 22:22
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Converting user input string to regular expression
I am designing a regular expression tester in HTML and JavaScript. The user will enter a regex, a string, and choose the function they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified argument...