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Java8 Lambdas vs Anonymous classes
..., names are resolved from the AIC's superclasses and interfaces and can shadow names that occur in the lexically enclosing environment. For lambdas, all names are resolved lexically.
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Difference between @import and link in CSS
...h <link> and @import (and all sorts of combinations of them) called "don’t use @import". That title pretty much speaks for itself.
Yahoo! also mentions it as one of their performance best practices (co-authored by Steve Souders): Choose <link> over @import
Also, using the <link>...
How to disable a link using only CSS?
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Also, this doesnt avoid tabbing to the link then enter.
– Jono
Dec 22 '13 at 9:26
4
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How to empty a Heroku database
I'm working on a Ruby on Rails 3 webapp on Heroku. How do I empty the database?
18 Answers
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What's the best way to make a d3.js visualisation layout responsive?
Assume I have a histogram script that builds a 960 500 svg graphic. How do I make this responsive so on resize the graphic widths and heights are dynamic?
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List of installed gems?
...uire 'rubygems'
def local_gems
Gem::Specification.sort_by{ |g| [g.name.downcase, g.version] }.group_by{ |g| g.name }
end
Because local_gems relies on group_by, it returns a hash of the gems, where the key is the gem's name, and the value is an array of the gem specifications. The value is an a...
Delete all files in directory (but not directory) - one liner solution
... This will also recursively deletes all sub-folders and files under them.
Docs: org.apache.commons.io.FileUtils.cleanDirectory
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Create a devise user from Ruby console
...111", :password_confirmation => "111111" }).save(false)
Otherwise I'd do this
User.create!({:email => "guy@gmail.com", :roles => ["admin"], :password => "111111", :password_confirmation => "111111" })
If you have confirmable module enabled for devise, make sure you are setting th...
Remove Identity from a column in a table
...t to remove the identity property on one of the column, but when we try to do this through SSMS - it times out.
11 Answers
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how to unit test file upload in django
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From Django docs on Client.post:
Submitting files is a special case. To POST a file, you need only
provide the file field name as a key, and a file handle to the file
you wish to upload as a value. For example:
c = Client()
wit...