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How to truncate milliseconds off of a .NET DateTime
...out 100% depending on the runtime; net 4.7.2: 0.35µs vs 0.62 µs and core 3.1: 0.18 µs vs 0.12 µs that's micro-seconds (10^-6 seconds)
– juwens
Feb 3 at 15:55
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Convert timestamp in milliseconds to string formatted time in Java
...>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
</dependency>
For example:
String formattedDuration = DurationFormatUtils.formatDurationHMS(12313152);
// formattedDuration value is "3:25:13.152"
String otherFormattedDuration = DurationFormatUti...
Creating dataframe from a dictionary where entries have different lengths
...r key, value in mydict.items() })
>>> dict_df
one 2 3
0 1.0 4 8.0
1 2.0 5 NaN
2 3.0 6 NaN
3 NaN 7 NaN
A similar syntax exists for lists, too:
>>> mylist = [ [1,2,3], [4,5], 6 ]
>>> list_df = pd.DataFrame([ pd.Series(value) for value in mylist ])
&...
Show which git tag you are on?
...is outputs a trailing ^0 for commits which correspond to tags (eg, for tag 1.0 it outputs 1.0^0). Is there any way of having Git output only 1.0, or should I use sed for this?
– Daniel Serodio
Jun 24 '15 at 14:16
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How do you use NSAttributedString?
...lor : BLACK_SHADOW];
[shadow setShadowOffset : CGSizeMake (1.0, 1.0)];
[shadow setShadowBlurRadius : 1];
NSAttributedString *labelText = [[NSAttributedString alloc] initWithString : myNSString
attributes : @{
NSParagraphStyleAttributeName : parag...
How to round an average to 2 decimal places in PostgreSQL?
...ecision is only available for numeric.
regress=> SELECT round( float8 '3.1415927', 2 );
ERROR: function round(double precision, integer) does not exist
regress=> \df *round*
List of functions
Schema | Name | Result data type | Argument data types | Type
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Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
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JS Date object was ported from Java 1.0, that's why. Inheriting all its flaws ... stackoverflow.com/questions/344380/…
– c69
Nov 10 '11 at 14:29
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Calling a function of a module by using its name (a string)
... after my comment. ;) In the 3.x branch, the module has been around since 3.1. 2.7 and 3.1 are now pretty ancient; you'll still find servers hanging around that only support 2.6, but it's probably worth having importlib be the standard advice nowadays.
– Xiong Chiamiov
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In Rails, how do you render JSON using a view?
...are other solutions, both seem somewhat outdated and won't work with Rails 3.1 without some patching.
RABL is available via a gem or check out the GitHub repository; good examples too
https://github.com/nesquena/rabl
shar...
How do you unit test a Celery task?
...GER', True, create=True):
...
Docs: http://docs.celeryproject.org/en/3.1/configuration.html#celery-always-eager
CELERY_ALWAYS_EAGER lets you run your task synchronous, and you don't need a celery server.
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