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Docker - how can I copy a file from an image to a host?
...asks about. However, +1 because it also works with files and comes with an extra feature: permission and owner preservation. Great!
– caligari
Nov 30 '17 at 9:06
5
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Finding the max value of an attribute in an array of objects
...nput in a array):
var maxA = a.reduce((a,b)=>a.y>b.y?a:b).y; // 30 chars time complexity: O(n)
var maxB = a.sort((a,b)=>b.y-a.y)[0].y; // 27 chars time complexity: O(nlogn)
var maxC = Math.max(...a.map(o=>o.y)); // 26 chars time complexity: >O(2n)
editable example her...
difference between fork and branch on github
... it to my PC effectively), al the branches are on my PC? But in one branch extra files have been added. So will my PC have those files or not?
– Jonathan.
Feb 15 '11 at 21:25
1
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How can I create directories recursively? [duplicate]
...nal calls to the shell commands mkdir, chmod, and chown. Make sure to pass extra flags to recursively affect directories:
>>> import subprocess
>>> subprocess.check_output(['mkdir', '-p', 'first/second/third'])
# Equivalent to running 'mkdir -p first/second/third' in a shell (whi...
How to fetch the row count for all tables in a SQL SERVER database [duplicate]
...unt of all tables in a database:
CREATE TABLE #counts
(
table_name varchar(255),
row_count int
)
EXEC sp_MSForEachTable @command1='INSERT #counts (table_name, row_count) SELECT ''?'', COUNT(*) FROM ?'
SELECT table_name, row_count FROM #counts ORDER BY table_name, row_count DESC
DROP TABLE ...
How does the @property decorator work in Python?
...erty()
<property object at 0x10ff07940>
It is this object that has extra methods:
>>> property().getter
<built-in method getter of property object at 0x10ff07998>
>>> property().setter
<built-in method setter of property object at 0x10ff07940>
>>> prop...
Download multiple files with a single action
...
Why is a zip file the preferred solution? It creates an extra step for the user (unzipping).
– speedplane
Apr 13 '15 at 13:26
...
How to Convert Boolean to String
I have a Boolean variable which I want to convert to a string:
15 Answers
15
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Adding two Java 8 streams, or an extra element to a stream
I can add streams or extra elements, like this:
8 Answers
8
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Getting output of system() calls in Ruby
...tem() at all. The backticks execute the command and return the output as a string. You can then assign the value to a variable like so:
output = `ls`
p output
or
printf output # escapes newline chars
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