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Getting a structural type with an anonymous class's methods from a macro
...hat class that's statically typed as a structural type with those methods, etc. This is possible with the macro system in 2.10.0, and the type member part is extremely easy:
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
...t you get going very quickly. With autofac, structure map, unity, ninject, etc you should be able to have the container working in about 5 mins. Yes they have advanced features but you don't need those to get off the ground.
– Glenn Block
Aug 18 '09 at 7:53
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
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This depends on what you actually call "mutex", OS mode and etc.
At minimum it's a cost of an interlocked memory operation. It's a relatively heavy operation (compared to other primitive assembler commands).
However, that can be very much higher. If what you call "mutex" a kernel ob...
Best practices for API versioning? [closed]
...ges commonly used to implement web services (Java, .NET, PHP, Perl, Rails, etc.) allow easy binding of web service end-point(s) to a base URI. This way it's easy to gather and keep a collection of files/classes/methods separate across different API versions.
From the API users POV, it's also easie...
Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
...For me, I should specify the conf, so I type >> (sudo) redis-server /etc/redis/redis.conf
– Romans 8.38-39
Jul 15 '14 at 5:57
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Return HTTP status code 201 in flask
...json.dumps({'success':True}), 200, {'ContentType':'application/json'}
...etc
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Difference between BYTE and CHAR in column datatypes
...could then be useful for bit flags (up to 8 settings), bitwise operations, etc.
– Matt Borja
May 7 '15 at 22:51
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Questions every good .NET developer should be able to answer? [closed]
...r development, game-engine development, theorem-proving, image processing, etc.
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edited May 23 '17 at 12:18
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What are bitwise shift (bit-shift) operators and how do they work?
...een attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) ...
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Load data from txt with pandas
...v('output_list.txt', sep=" ", header=None)
data.columns = ["a", "b", "c", "etc."]
Add sep=" " in your code, leaving a blank space between the quotes. So pandas can detect spaces between values and sort in columns. Data columns is for naming your columns.
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