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When should I choose Vector in Scala?
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As a general rule, default to using Vector. It’s faster than List for almost everything and more memory-efficient for larger-than-trivial sized sequences. See this documentation of the relative performance of Vector compared to the other collections. There are some downside...
How to write a large buffer into a binary file in C++, fast?
...ax out my SSD. I didn't expect this to see, because option2 used to be the fastest code on my old machine back then.
TL;DR: My measurements indicate to use std::fstream over FILE.
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jquery - fastest way to remove all rows from a very large table
I thought this might be a fast way to remove the contents of a very large table (3000 rows):
8 Answers
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To switch from vertical split to horizontal split fast in Vim
How can you switch your current windows from horizontal split to vertical split and vice versa in Vim?
8 Answers
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Python `if x is not None` or `if not x is None`?
.... return x is not None
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>>> dis.dis(f)
2 0 LOAD_FAST 0 (x)
3 LOAD_CONST 0 (None)
6 COMPARE_OP 9 (is not)
9 RETURN_VALUE
>>> def g(x):
... return not x is None
...
>>> d...
Parsing a CSV file using NodeJS
...ary, which also includes validation support. https://www.npmjs.org/package/fast-csv
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Trying to start a service on boot on Android
... This could be useful in some circumstances, but I understand the HTC Fast Boot is a form of hibernation where system state is saved to the filesystem, and the android.intent.action.QUICKBOOT_POWERON is only sent when restoring from fast boot. This means it isn't necessary to do things like res...
Can Protractor and Karma be used together?
... event driving and flexibility of webdriver, while for unit tests you want fast execution and autowatching of files.
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Error: free(): invalid next size (fast):
What is this strange error I'm getting? I'm compiling C++ using g++ on Ubuntu 10.10. It pops up randomly when I run the executable (maybe 2 times in 8 hours, with 10 compiles an hour). However, if I make clean and recompile it goes away most of the time.
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How Pony (ORM) does its tricks?
... import dis
>>> dis.dis(gen.gi_frame.f_code)
1 0 LOAD_FAST 0 (.0)
>> 3 FOR_ITER 26 (to 32)
6 STORE_FAST 1 (c)
9 LOAD_FAST 1 (c)
12 LOAD_ATTR 0 (cou...