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Is it safe to assume a GUID will always be unique?
...in the universe, and just under 2128 GUIDs, then there are approximately 4.86×1015—almost five quadrillion—GUIDs for every single star. If every one of those stars had a world with a thriving population like ours, then around each and every star, every human or alien who had ever lived would b...
How do I convert Long to byte[] and back in java
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YouTube API to fetch all videos on a channel
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Here is a video from Google Developers showing how to list all videos in a channel in v3 of the...
How can I exclude directories from grep -R?
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If you want to exclude multiple directories:
"r" for recursive, "l" to print only names of fi...
How to estimate how much memory a Pandas' DataFrame will need?
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Here's a comparison of the different methods - sys.getsizeof(df) is simplest.
For this example...
Finding index of character in Swift String
...wrapper to index by integers (see https://stackoverflow.com/a/25152652/669586) is dangerous because it hides the inefficiency of real indexing.
Note that Swift indexing implementation has the problem that indices/ranges created for one string cannot be reliably used for a different string, for exam...
What is the Difference Between read() and recv() , and Between send() and write()?
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Per the first hit on Google
read() is equivalent to recv() with a flags parameter of 0. Oth...
How do I deal with certificates using cURL while trying to access an HTTPS url?
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Put this into your .bashrc
# fix CURL certificates path
export CURL_CA_BUNDLE=/etc/ssl/certs/c...
Namespace for [DataContract]
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I solved this problem by adding C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.0\System.Runtime.Serialization.dll in the reference
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Is there any downside for using a leading double slash to inherit the protocol in a URL? i.e. src=“/
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If the browser supports RFC 1808 Section 4, RFC 2396 Section 5.2, or RFC 3986 Section 5.2, then...