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How to inherit constructors?
...rray. It also makes it easy to carry forward since anything that inherits from Foo can still get to, or even add to, FooParams as needed. You still need to copy the constructor, but you always (most of the time) only (as a general rule) ever (at least, for now) need one constructor.
public class ...
Displaying Windows command prompt output and redirecting it to a file
... it will work, but you will get stuck if the command wait a input from stdin.
– Vitim.us
Apr 18 '13 at 16:03
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How do I preview emails in Rails?
...review.rb
class NotifierPreview < ActionMailer::Preview
# Accessible from http://localhost:3000/rails/mailers/notifier/welcome
def welcome
Notifier.welcome(User.first)
end
end
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How to get Sinatra to auto-reload the file after each change?
...
You could use guard-rack. Lifted from an article at dblock.org:
Add this to your Gemfile:
group :development do
gem "guard"
gem "guard-bundler"
gem "guard-rack"
end
Then, create a Guardfile at the root of your project with this content:
guard '...
Parse query string into an array
...
This is one-liner for parsing query from current URL into array:
parse_str($_SERVER['QUERY_STRING'], $query);
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What is the difference between & and && in Java?
... if any of the two bits is 1 and it returns 0 if any of the bits is 0.
From the wiki page:
http://www.roseindia.net/java/master-java/java-bitwise-and.shtml
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Double vs single quotes
...anguage. It will help you understand what you are doing (and will keep you from thinking that Rails is magic). I personally recommend The Well grounded Rubyist.
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.NET - How can you split a “caps” delimited string into an array?
How do I go from this string: "ThisIsMyCapsDelimitedString"
17 Answers
17
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How do I programmatically click a link with javascript?
... it did not work in IE9, but setting location.href actually sent the email from the mailto: link. Great solution!
– ajeh
Mar 2 '15 at 19:36
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Int division: Why is the result of 1/3 == 0?
...r question, you can do 1.0/3 ; the 1.0 is a double.
If you get the values from elsewhere you can use (double) to turn the int into a double.
int x = ...;
int y = ...;
double value = ((double) x) / y;
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