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Show pending migrations in rails
...ationError that you need to rescue)
you can use needs_migration? method:
https://apidock.com/rails/v4.0.2/ActiveRecord/Migrator/needs_migration%3F/class
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What is the most robust way to force a UIView to redraw?
...y want to show some activity indicator, for simple loading indicator check https://github.com/jdg/MBProgressHUD
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jQuery: Count number of list elements?
... num = $("#mylist").find("li").length;
console.log(num);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="mylist">
<li>Element 1</li>
<li>Element 2</li>
<li>Element 3</li>
<li>E...
Rails Root directory path?
...ils
def self.root
File.expand_path("..", __dir__)
end
end
source:
https://github.com/rails/rails/blob/5259062868dcf10fbcf735d6520e6a14e15fdcdb/actionmailer/test/abstract_unit.rb#L12
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What does the caret (^) character mean?
...it introductory docs online also introduce revision and range specifiers:
https://git-scm.com/book/en/v2/Git-Tools-Revision-Selection
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What is the etymology of 'slug'? [closed]
...lliam. Even Stack Overflow does this, with the GEB-ish(a) self-referential https://stackoverflow.com/questions/4230846/what-is-the-etymology-of-slug/4230937#4230937, although you can replace the slug with blahblah and it will still find it okay.
It may even date back earlier than that, since screen...
How to get root view controller?
...
}
return presentedVC
}
Its included as a standard function in:
https://github.com/goktugyil/EZSwiftExtensions
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How to kill a process on a port on ubuntu
...command :
sh killport 9001
To Download shell ,you can use wget :
wget https://cdn.rawgit.com/abdennour/miscs.sh/e0aac343/killport
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Sublime Text 2: How to delete blank/empty lines
...
I had to use:
replace \n^\s*\n
with \n
The https://github.com/NicholasBuse/sublime_DeleteBlankLines plugin did nothing at all.
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How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
...ries, Simply:
Download your GCC-X.0.0 -version (with latest version from: https://gcc.gnu.org/)
Extract the gcc-X-000.tar.gz files to a location /somepath/.
Once you have Extracted .tar.gz file, run ./contrib/download_prerequisites script which is located on /somepath/ or the source directory.
T...