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Which is faster in Python: x**.5 or math.sqrt(x)?
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first rule of optimization: don't do it
second rule: don't do it, yet
Here's some timings (Python 2.5.2, Windows):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
1000000 loops, best of 3: 0.445 usec per loop
$ python -mtimeit -s"from m...
How to deal with floating point number precision in JavaScript?
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From the Floating-Point Guide:
What can I do to avoid this problem?
That depends on what kind of
calculations you’re doing.
If you really need your results to add up exactly, especially when you
work with money: use a special decimal
datatype.
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Java NIO FileChannel versus FileOutputstream performance / usefulness
...od option to use NIO based classes for File I/O, if I am not looking at random access or other such advanced features?
7 An...
How to amend older Git commit? [duplicate]
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Note - you don't have to git commit after git add -A, simply git rebase --continue will keep your changes.
– manyways
Jan 14 '16 at 17:32
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Is there a bash command which counts files?
...ld process. log* is expanded by the shell, not ls, so a simple echo would do.
– cdarke
Jul 3 '12 at 9:24
2
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Should private helper methods be static if they can be static
...nstantiated. I have several private "helper" methods inside the class that do not require access to any of the class members, and operate solely on their arguments, returning a result.
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How to use executables from a package installed locally in node_modules?
How do I use a local version of a module in node.js . For example, in my app, I installed coffee-script:
22 Answers
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Changing the “tick frequency” on x or y axis in matplotlib?
...ticks(np.arange(start, end, stepsize))
The default tick formatter should do a decent job rounding the tick values to a sensible number of significant digits. However, if you wish to have more control over the format, you can define your own formatter. For example,
ax.xaxis.set_major_formatter(tic...
How to concatenate and minify multiple CSS and JavaScript files with Grunt.js (0.3.x)
...concatenate and their order, or change the structure of your project.
If doing the latter, you could put all your sources under ./src and your built files under ./dest
src
├── css
│ ├── 1.css
│ ├── 2.css
│ └── 3.css
└── js
├── 1.js
├...
Having Django serve downloadable files
I want users on the site to be able to download files whose paths are obscured so they cannot be directly downloaded.
15 An...