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Ruby on Rails: How can I revert a migration with rake db:migrate?
...nt to revert.
eg. if you want to revert a migration with file name 3846656238_create_users.rb
rake db:migrate:down VERSION=3846656238
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foll...
Using parameters in batch files at Windows command line
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287
As others have already said, parameters passed through the command line can be accessed in bat...
How to debug Ruby scripts [closed]
...
Then add:
require 'pry'; binding.pry
into your program.
As of pry 0.12.2 however, there are no navigation commands such as next, break, etc. Some other gems additionally provide this, see for example pry-byedebug.
shar...
Automatically plot different colored lines
... a colormap such as HSV to generate a set of colors. For example:
cc=hsv(12);
figure;
hold on;
for i=1:12
plot([0 1],[0 i],'color',cc(i,:));
end
MATLAB has 13 different named colormaps ('doc colormap' lists them all).
Another option for plotting lines in different colors is to use the Line...
Underscore: sortBy() based on multiple attributes
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251
sortBy says that it is a stable sort algorithm so you should be able to sort by your second pr...
What are 'get' and 'set' in Swift?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jul 11 '14 at 13:55
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WPF: Setting the Width (and Height) as a Percentage Value
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answered Apr 4 '09 at 16:24
gcoresgcores
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C# Sort and OrderBy comparison
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92
Why not measure it:
class Program
{
class NameComparer : IComparer<string>
{
...
What is the GAC in .NET?
...ssembly
C:\Windows\assembly>dir
Directory of C:\Windows\assembly
07/20/2009 02:18 PM <DIR> GAC
06/17/2009 04:22 PM <DIR> GAC_32
06/17/2009 04:22 PM <DIR> GAC_64
06/17/2009 04:22 PM <DIR> GAC_MSIL
...snip...
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How to get RGB values from UIColor?
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edited Mar 23 '18 at 8:00
Pang
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