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What is the most efficient way to deep clone an object in JavaScript?
...ode 11 and later, and hopefully will land in browsers. See this answer for more details.
Fast cloning with data loss - JSON.parse/stringify
If you do not use Dates, functions, undefined, Infinity, RegExps, Maps, Sets, Blobs, FileLists, ImageDatas, sparse Arrays, Typed Arrays or other complex types...
Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
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Pandas read_csv low_memory and dtype options
...or long() with base 10: 'foobar'
dtypes are typically a numpy thing, read more about them here:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.dtype.html
What dtypes exists?
We have access to numpy dtypes: float, int, bool, timedelta64[ns] and datetime64[ns]. Note that the numpy date/tim...
How to determine the memory footprint (size) of a variable?
...ontrol and the logs can be written both on mongo or in the filesystem.
For more details see here.
Blackfire
Blackfire is a PHP profiler by SensioLabs, the Symfony2 guys https://blackfire.io/
If you use puphpet to set up your virtual machine you'll be happy to know it's supported ;-)
Xdebug and traci...
Best way to add page specific JavaScript in a Rails 3 app?
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Create a dictionary on a list with grouping
...e names too, of course :)
However, might I suggest that a Lookup might be more appropriate? A Lookup is basically a dictionary from a key to an IEnumerable<T> - unless you really need the values as a list, it makes the code even shorter (and more efficient) with the ToLookup call:
var groupe...
Convert a character digit to the corresponding integer in C
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@Pan In any encoding, including ASCII, that has 'b' 1 more than 'a'. This still holds true in EBCDIC, however it makes ('j' - 'i') == 8.
– Chris Young
Aug 26 '13 at 9:32
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How to get ID of the last updated row in MySQL?
...CT LAST_INSERT_ID(); will return the updated id. See newtover's answer for more details.
– Joel
Jun 2 '14 at 14:35
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Who is listening on a given TCP port on Mac OS X?
...or displaying raw port numbers instead of resolved names like http, ftp or more esoteric service names like dpserve, socalia.
See the comments for more options.
For completeness, because frequently used together:
To kill the PID:
kill -9 <PID>
# kill -9 60401
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