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Counting the Number of keywords in a dictionary in python
...ries in the dictionary) can be found using the len() function.
> a = {'foo':42, 'bar':69}
> len(a)
2
To get all the distinct words (i.e. the keys), use the .keys() method.
> list(a.keys())
['foo', 'bar']
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Understanding the Gemfile.lock file
...xclamation mark I just found out it's on gems fetched via :git, e.g.
gem "foo", :git => "git@github.com:company/foo.git"
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Reload .profile in bash shell script (in unix)?
.... In worst cases, if somebody would use a variable assignment like MyVar="$foo$MyVar" in their bash_profile, then source ~/.profile would give the end result MyVar="$foo$MyVar$MyVar", hence $MyVar would have the wrong value afterwards. (Regardless of bad practices, just ask for an alternate solution...
What are the various “Build action” settings in Visual Studio project properties and what do they do
... variables of your class to the now-created items (e.g. if you put x:Name="foo" on an item, you'll be able to do this.foo.Background = Purple; or similar.
ApplicationDefinition -- similar to Page, except it goes onestep furthur, and defines the entry point for your application that will instantiate...
How do you manually execute SQL commands in Ruby On Rails using NuoDB
...ustom SQL statements is:
results = ActiveRecord::Base.connection.execute("foo")
with "foo" being the sql statement( i.e. "SELECT * FROM table").
This command will return a set of values as a hash and put them into the results variable.
So on my rails application_controller.rb I added this:
def...
Sharing a result queue among several processes
...n as the result becomes ready.
from multiprocessing import Pool
def busy_foo(i):
"""Dummy function simulating cpu-bound work."""
for _ in range(int(10e6)): # do stuff
pass
return i
if __name__ == '__main__':
with Pool(4) as pool:
print(pool._outqueue) # DEMO
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How can I merge properties of two JavaScript objects dynamically?
...ct into settings object
var settings = { validate: false, limit: 5, name: "foo" };
var options = { validate: true, name: "bar" };
jQuery.extend(settings, options);
// Now the content of settings object is the following:
// { validate: true, limit: 5, name: "bar" }
The above code will mutate the ...
Reverting a single file to a previous version in git [duplicate]
...he changes in the range from..to, do the following
git diff to..from > foo.diff # get a reverse diff
patch < foo.diff
git commit -a -m "Undid changes from..to".
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Convert JSON style properties names to Java CamelCase names with GSON
...
Bear in mind your example is an edge case. If you have a property 'foo' its getter should be named 'getFoo', and if you have a property named 'foo_bar' its getter should be named 'getFooBar', however, in your example you're mapping a boolean and booleans have special case naming conventions...
Get underlying NSData from UIImage
...a pixel array or some other internal format. In other words, UIImage(data: foo) will not retain foo.
If you just want to use it elsewhere in your program, the original UIImage will do fine (I presume that's not actually the case here)
If you want to serialise, UIImagePNGRepresentation(...) will wo...