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What is the advantage of using abstract classes instead of traits?
...ot to trait?" which addresses this question. Since the 1st ed is available online, I'm hoping it's OK to quote the whole thing here. (Any serious Scala programmer should buy the book):
Whenever you implement a reusable collection of behavior, you will
have to decide whether you want to use a t...
No visible cause for “Unexpected token ILLEGAL”
...hem by default, and the ZWSP shows as <u200b>. You can also debug it online: jsbin displays the character as a red dot on its code panes (but seems to remove it after saving and reloading the page). CodePen.io also displays it as a dot, and keeps it even after saving.
Related problems
That cha...
How to use sed to replace only the first occurrence in a file?
...ment since it's not accurate. The detail can be found here (linuxtopia.org/online_books/linux_tool_guides/the_sed_faq/…). Andy's answer only works for GNU sed, but not the one on Mac.
– Landys
Apr 11 '15 at 13:53
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Header files for x86 SIMD intrinsics
...t extensions (MMX, SSE, AVX, ...)? It seems impossible to find such a list online. Correct me if I'm wrong.
5 Answers
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How can I represent an 'Enum' in Python?
...for Simulating Enumerations in Python published in the Python Cookbook. An online version of that is available here.
More info:
PEP 354: Enumerations in Python has the interesting details of a proposal for enum in Python and why it was rejected.
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Difference between HBase and Hadoop/HDFS
...es HDFS as storage - which takes care of backup\redundency\etc but its an "online store" - meaning you can query it for specific row\rows etc and get an immediate value.
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Function pointers, Closures, and Lambda
..." I knew this assumption is fundamentally wrong somehow and after a search online I didn't find really any analysis of this comparison.
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How can I delete a file from a Git repository?
...s page has a graphic that help demystify Git for me. The "Pro Git" book is online and helps me a lot.
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Patterns for handling batch operations in REST web services?
...xible down the road.
Update: Aha! I've found a snip from that very book online, complete with code samples (although I still suggest picking up the actual book!). Have a look here, beginning with section 5.5.3:
This is easy to code but can result in
a lot of very small bits of traffic to
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To underscore or to not to underscore, that is the question
...e Intellisense. For example when you do code reviews or browse source code online.
underscore-notation is ambiguous: When you see Something.SomethingElse you cannot tell whether Something is a class and SomethingElse is its static property... or maybe Something is a current instance property which...