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Getting the class name of an instance?
...same name defined in separate modules.
The sample code provided above was tested in Python 2.7.5.
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How to get instance variables in Python?
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You can also test if an object has a specific variable with:
>>> hi_obj = hi()
>>> hasattr(hi_obj, "some attribute")
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What is ?= in Makefile
... not set/doesn't have a value.
For example:
KDIR ?= "foo"
KDIR ?= "bar"
test:
echo $(KDIR)
Would print "foo"
GNU manual: http://www.gnu.org/software/make/manual/html_node/Setting.html
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IntelliJ shortcut to show a popup of methods in a class that can be searched
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If you are running on Linux (I tested in Ubuntu 10.04), the shortcut is Ctrl + F12 (same of Windows)
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How to extract URL parameters from a URL with Ruby or Rails?
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I haven't tested this, but the first key listed, containing the full url, seems really wrong.
– Levi
Mar 26 '10 at 4:14
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How do I implement onchange of with jQuery?
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Tested at IE9, backspace will not be fired
– Jaskey
Jul 1 '15 at 9:15
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Set up Heroku and GoDaddy? [closed]
...ng (in seconds) to cache a DNS entry. Set this to a low value while you're testing and then crank it up once you have your DNS figured out. Some DNS servers may override the TTL with their own value, so beware, but I think at worst this is usually a couple of hours.
– Adam Fabi...
Remove excess whitespace from within a string
... whitespace for you - make sure you have "\" before "s" :) some online-php-testing pages remove it :)
– jave.web
Jul 3 '16 at 11:27
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Case-insensitive search in Rails model
... :name, unique: true # If you want to index the product names
end
And to test it out you should expect the following:
Product.create! name: 'jOgGers'
=> #<Product id: 1, name: "jOgGers">
Product.find_by(name: 'joggers')
=> #<Product id: 1, name: "jOgGers">
Product.find_by(name...
How can I add a help method to a shell script?
...always be the first option ($1) then the simplest solution is an if with a test ([). For example:
if [ "$1" == "-h" ] ; then
echo "Usage: `basename $0` [-h]"
exit 0
fi
Note that for posix compatibility = will work as well as ==.
Why quote $1?
The reason the $1 needs to be enclosed in qu...