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What are all the differences between src and data-src attributes?
...n, except that they are both allowed by HTML5 CR and they both contain the letters src. Everything else is different.
The src attribute is defined in HTML specs, and it has a functional meaning.
The data-src attribute is just one of the infinite set of data-* attributes, which have no defined mean...
What is the fundamental difference between WebSockets and pure TCP?
...easier to send messages over the wire via the Application Layer instead of raw bytes at the Transport Layer.
Underlying WebSockets is TCP, it's just abstracted away for simplicity.
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How large should my recv buffer be when calling recv in the socket library
...e buffer following the partial message. You shouldn't use strstr() on the raw buffer filled by recv() - there's no guarantee that it contains a nul-terminator, so it might cause strstr() to crash.
– caf
May 20 '10 at 21:46
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Capturing Groups From a Grep RegEx
...cregrep doesn't seem to understand the digit after the -o: "Unknown option letter '1' in "-o1". Also no mention of that functionaliy when looking at pcregrep --help
– Peter Herdenborg
Mar 25 '15 at 9:10
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Why have header files and .cpp files? [closed]
...ge about the other CPP files (or even libraries), unless fed to it through raw declaration or header inclusion. The CPP file is usually compiled into a .OBJ or a .O "object" file.
The second is the linking together of all the "object" files, and thus, the creation of the final binary file (either a ...
Why prefer two's complement over sign-and-magnitude for signed numbers?
... signed or unsigned integer or a double or a string or something else. The raw data is whatever type you choose to interpret it as.
– Welbog
Jul 2 '15 at 19:23
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Switch case with fallthrough?
... and C='abra'
[Aa]'bra')
do_mysterious_things
;;
# will match all letter cases at any char like `abra`, `ABRA` or `AbRa`
[Aa][Bb][Rr][Aa])
do_wild_mysterious_things
;;
esac
But abra didn't hit anytime because it will be matched by the first case.
If needed, you can omit ;; in t...
Code for decoding/encoding a modified base64 URL
...ion that worked for me when parsing a message in the GMail API v1 (Message.Raw)
– HeyZiko
Apr 18 '15 at 18:22
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Encapsulation vs Abstraction?
...ils of transmitting bits over a network. If you go down all the way to the raw silicon, the people who designed your CPU did so using circuit diagrams written in terms of "diodes" and "transistors", which are abstractions of how electrons travel through semiconductor crystals.
In software, everythi...
Regular expression for exact match of a string
...wo whole strings are exactly the same. Also, \w matches digits as well as letters, so [\w\d] is redundant.
– Alan Moore
Apr 17 '14 at 2:54
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