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Why prefer two's complement over sign-and-magnitude for signed numbers?
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It's done so that addition doesn't need to have any special logic for dealing with negative nu...
Do rails rake tasks provide access to ActiveRecord models?
... then run new_task.
– bigpotato
Jan 30 '13 at 16:16
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@scoarescoare you can check custom rake doc...
How to concatenate multiple lines of output to one line?
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edited Mar 22 '13 at 21:42
answered Mar 22 '13 at 21:31
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How do I mock an open used in a with statement (using the Mock framework in Python)?
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131
The way to do this has changed in mock 0.7.0 which finally supports mocking the python protocol...
How do I find the location of my Python site-packages directory?
...list the virtualenv's site-packages directory correctly, though. In Python 3, you may use the sysconfig module instead:
python3 -c 'import sysconfig; print(sysconfig.get_paths()["purelib"])'
The per user site-packages directory (PEP 370) is where Python installs your local packages:
python -m sit...
How to make my custom type to work with “range-based for loops”?
... an overload will not be called by a for(:) loop. See [stmt.ranged] 1.2-1.3 from n4527.
² Either call the begin/end method, or ADL-only lookup of free function begin/end, or magic for C-style array support. Note that std::begin is not called unless range_expression returns an object of type in n...
How to parse/read a YAML file into a Python object? [duplicate]
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3 Answers
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Active
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Get String in YYYYMMDD format from JS date object?
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637
Altered piece of code I often use:
Date.prototype.yyyymmdd = function() {
var mm = this.getM...
One-liner to check whether an iterator yields at least one element?
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135
any won't go beyond the first element if it's True. In case the iterator yields something false...
Elegant way to invert a map in Scala
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answered Feb 25 '10 at 23:59
Daniel C. SobralDaniel C. Sobral
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