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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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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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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.
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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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Open document with default OS application in Python, both in Windows and Mac OS
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I ran xdg-open test.py and it opened firefox download dialog for me. What's wrong? I'm on manjaro linux.
– Jason
Sep 12 '18 at 3:28
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Eclipse “Invalid Project Description” when creating new project from existing source
...e and rename project with old name. Eclipse will rename folder too.
P.S. Tested on Eclipse Juno.
Edit: Many times have passed since this answer and new Eclipse and Android SDK arrived. They have no much more problems during importing existing projects. The only thing one has to consider before im...
Running Python on Windows for Node.js dependencies
...set right before the npm command, without rebooting in between.
You can test whether you've done things right by doing the exact same thing the config script is trying to do: Before running npm, try running %PYTHON%. If you've done it right, you'll get a Python interpreter (which you can immediat...