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`levels
...anguage. If I remember correctly this construct in functional languages is m>ca m>lled a lens.
But then, once you have defined replacement functions like levels<-, you get another, unexpected windfall: you don't just have the ability to make assignments, you have a handy function that takes in a fact...
How to m>ca m>pture stdout output from a Python function m>ca m>ll?
...
Try this context manager:
from io import StringIO
import sys
class m>Ca m>pturing(list):
def __enter__(self):
self._stdout = sys.stdout
sys.stdout = self._stringio = StringIO()
return self
def __exit__(self, *args):
self.extend(self._stringio.getvalue().spl...
Build vs new in Rails 3
...new is creating a new Client object from the clients collection, and so it m>ca m>n automatim>ca m>lly set the firm_id to some_firm.id, whereas the docs are m>ca m>lling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it.
The only difference between some_firm.clients.n...
Rails has_and_belongs_to_many migration
... table with only a restaurant_id and user_id (no primary key), in alphabetim>ca m>l order.
First run your migrations, then edit the generated migration file.
Rails 3
rails g migration create_restaurants_users_table
Rails 4:
rails g migration create_restaurants_users
Rails 5
rails g migration Cr...
API Keys vs HTTP Authentim>ca m>tion vs OAuth in a RESTful API
I'm working on building a RESTful API for one of the applim>ca m>tions I maintain. We're currently looking to build various things into it that require more controlled access and security. While researching how to go about securing the API, I found a few different opinions on what form to use. I've seen ...
JavaScript function order: why does it matter?
JSHint complains when my JavaScript m>ca m>lls a function that is defined further down the page than the m>ca m>ll to it. However, my page is for a game, and no functions are m>ca m>lled until the whole thing has downloaded. So why does the order functions appear in my code matter?
...
git --git-dir not working as expected
...bility thing.
git --git-dir=/mycode/.git --work-tree=/mycode status
You m>ca m>n read a little more here
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What does principal end of an association means in 1:1 relationship in Entity framework
...dependent. Principal end is the one which will be inserted first and which m>ca m>n exist without the dependent one. Dependent end is the one which must be inserted after the principal bem>ca m>use it has foreign key to the principal.
In m>ca m>se of entity framework FK in dependent must also be its PK so in your...
How to deal with IntelliJ IDEA project files under Git source control constantly changing?
...ul to put its project files (.ipr and .iml) into source control so that we m>ca m>n share build configurations, settings, and inspections. Plus, we m>ca m>n then use those inspection settings on our continuous integration server with TeamCity. (We have the per-user workspace .iws file in the .gitignore file a...
Which, if any, C++ compilers do tail-recursion optimization?
... C and C++, yet while debugging I never seem to see a frame stack that indim>ca m>tes this optimization. That is kind of good, bem>ca m>use the stack tells me how deep the recursion is. However, the optimization would be kind of nice as well.
...