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Is it possible to use 'else' in a list comprehension? [duplicate]
...later.
– Kevin Horn
Jun 1 '10 at 22:20
7
Also note, that the else is necessary and cannot be ommi...
Why can't variables be declared in a switch statement?
...les.
– Chris Jefferson
Feb 7 '09 at 20:11
10
@workmad3 by entering a new curly braces block doesn...
In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
...active_support'.
>> time = Time.new
=> Fri Oct 03 01:24:48 +0100 2008
>> time.strftime("%a %b #{time.day.ordinalize}")
=> "Fri Oct 3rd"
Note, if you are using IRB with Ruby 2.0, you must first run:
require 'active_support/core_ext/integer/inflections'
...
MySQL InnoDB not releasing disk space after deleting data rows from table
...rt mysql, create database and users, and then import. Thank god I only had 200MB worth of rows, but it spared 250GB of innodb file.
Fail by design.
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Android: How to enable/disable option menu item on button click?
...l there.
– AgentKnopf
Jan 16 '13 at 20:43
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How does one reorder columns in a data frame?
...50)].
– dalloliogm
Feb 25 '14 at 12:20
1
to put the columns in idcols at the start: idcols <- ...
Is it a bad practice to use negative margins in Android?
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In 2010, @RomainGuy (core Android engineer) stated that negative margins had unspecified behavior.
In 2011, @RomainGuy stated that you can use negative margins on LinearLayout and RelativeLayout.
In 2016, @RomainGuy stated tha...
Installing a local module using npm?
...ple here and here
– The Red Pea
Apr 20 '17 at 23:03
4
However keep in mind that npm link will cre...
How to build for armv6 and armv7 architectures with iOS 5
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answered Sep 20 '11 at 18:46
Mark GranoffMark Granoff
16.7k22 gold badges5555 silver badges5959 bronze badges
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When do we need curly braces around shell variables?
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@karatedog ${1:-20} is a form of parameter expansion. Here it is not obvious because it mainly uses digits and arithmetic operators which trick us in thinking there is arithmetic involved, but it actually refers to the positional parameter $...