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In Ruby, is there an Array method that combines 'select' and 'map'?
...g of lazy evaluation w.r.t chaining operations over a collection. (You can test this by adding a puts statement to the beginning of the select and map blocks in the first example. You'll find that they print the same number of lines)
– pje
Feb 11 '18 at 23:02
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How to redirect single url in nginx?
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@Cybolic I just tested this on a docker image with the version 1.10.3 and it was fine, could you provide your config file somehow? You probably are missing something.
– Mohammad AbuShady
Sep 27 '17 at 9...
Why is it slower to iterate over a small string than a small list?
... 9 LOAD_CONST 6 (('a', 'b', 'c'))
as tuples are immutable. Test:
>>> python3 -m timeit '[x for x in ("a", "b", "c")]'
1000000 loops, best of 3: 0.369 usec per loop
Great, back up to speed.
For Python 2:
def list_iterate():
[item for item in ["a", "b", "c"]]
dis.dis...
Storing Images in PostgreSQL
...ups), serving many tables. See also PostgreSQL binary data types manual, tests with bytea column, etc.
NOTE1: today the use of "dual solutions" (database+filesystem) is deprecated (!). There are many advantages to using "only database" instead dual. PostgreSQL have comparable performance and go...
system(“pause”); - Why is it wrong?
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Sometimes an Ungood Practice™ is needed for quick tests.... what we call "quick and dirty"
– Michael Haephrati
Jan 11 '18 at 19:04
add a comment
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mvn clean install vs. deploy vs. release
...in the POM to include the final
destination of the tag
Run the project tests against the modified POMs to confirm everything is
in working order
Commit the modified POMs
Tag the code in the SCM with a version name (this will be prompted
for)
Bump the version in the POMs to a new value ...
Is it possible to install another version of Python to Virtualenv?
...ct.py
[...repeat until all symbolic links are relative...]
$ cd ../../../
Test
$ python --version
Python 2.7.1
$ source env/bin/activate
(env)
$ python --version
Python 2.7.3
Aloha.
share
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imp...
Is it possible to specify a starting number for an ordered list?
...ght get lost as a result. Screen reader support for counter should also be tested. Screen reader support for content in CSS is a relatively recent feature and behaviour is not necessarily consistent. See Screen Readers and CSS: Are We Going Out of Style (and into Content)? by John Northup on the Web...
How to read a CSV file into a .NET Datatable
...SV files is that we can edit them in Excel.
string CSVFilePathName = @"C:\test.csv";
string[] Lines = File.ReadAllLines(CSVFilePathName);
string[] Fields;
Fields = Lines[0].Split(new char[] { ',' });
int Cols = Fields.GetLength(0);
DataTable dt = new DataTable();
//1st row must be column names; for...
How do I keep two side-by-side divs the same height?
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@user2025810: yikes, can't say I've ever tested in that :) Good to know though, cheers. (Given its PDF focus I bet it supports some of the print-related features of CSS 2.1 that aren't implemented very well in browsers.)
– Paul D. Waite
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