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Extract month and year from a zoo::yearmon object
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You can use format:
library(zoo)
x <- as.yearmon(Sys.time())
format(x,"%b")
[1] "Mar"
format(x,"%Y")
[1] "2012"
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follo...
Python argparse command line flags without arguments
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Here's a quick way to do it, won't require anything besides sys.. though functionality is limited:
flag = "--flag" in sys.argv[1:]
[1:] is in case if the full file name is --flag
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How do I write output in same place on the console?
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You can also use the carriage return:
sys.stdout.write("Download progress: %d%% \r" % (progress) )
sys.stdout.flush()
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converting Java bitmap to byte array
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Since this question has the Android tag, converting bytes back to a Bitmap can also be done with a one-liner: Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length) where bytes is your byte array
– automaton
Aug 29...
How to get a Color from hexadecimal Color String
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Convert that string to an int color which can be used in setBackgroundColor and setTextColor
String string = "#FFFF0000";
int color = Integer.parseInt(string.replaceFirst("^#",""), 16);
The 16 means it is hexadecimal and n...
How to beautify JSON in Python?
...thon solution that colors json data supplied via the command line:
import sys
import json
from pygments import highlight, lexers, formatters
formatted_json = json.dumps(json.loads(sys.argv[1]), indent=4)
colorful_json = highlight(unicode(formatted_json, 'UTF-8'), lexers.JsonLexer(), formatters.Ter...
Conveniently map between enum and int / String
...utility:
public class ReverseEnumMap<V extends Enum<V> & EnumConverter> {
private Map<Byte, V> map = new HashMap<Byte, V>();
public ReverseEnumMap(Class<V> valueType) {
for (V v : valueType.getEnumConstants()) {
map.put(v.convert(), v);
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Generating random strings with T-SQL
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Using a guid
SELECT @randomString = CONVERT(varchar(255), NEWID())
very short ...
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Useful code which uses reduce()? [closed]
...t to take the bitwise or of a bunch of numbers, for example if you need to convert flags from a list to a bitmask?
– Antimony
Oct 15 '12 at 21:55
6
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Sound alarm when code finishes
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On Linux and Mac
import os
duration = 1 # seconds
freq = 440 # Hz
os.system('play -nq -t alsa synth {} sine {}'.format(duration, freq))
In order to use this example, you must install sox.
On Debian / Ubuntu / Linux Mint, run this in your terminal:
sudo apt install sox
On Mac, run this in...