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How to squash commits in git after they have been pushed?
...h
git push origin +master
Difference between --force and +
From the documentation of git push:
Note that --force applies to all the refs that are pushed, hence using
it with push.default set to matching or with multiple push
destinations configured with remote.*.push may overwrite re...
Is it Pythonic to use list comprehensions for just side effects?
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It is very anti-Pythonic to do so, and any seasoned Pythonista will give you hell over it. The intermediate list is thrown away after it is created, and it could potentially be very, very large, and therefore expensive to create.
...
In a storyboard, how do I make a custom cell for use with multiple controllers?
...on the scene the cell is in.
Unfortunately, there is currently no way to do this. To understand why your previous attempts didn't work, you need to understand more about how storyboards and prototype table view cells work. (If you don't care about why these other attempts didn't work, feel free to...
Python: changing value in a tuple
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First you need to ask, why you want to do this?
But it's possible via:
t = ('275', '54000', '0.0', '5000.0', '0.0')
lst = list(t)
lst[0] = '300'
t = tuple(lst)
But if you're going to need to change things, you probably are better off keeping it as a list
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How do I assert an Iterable contains elements with a certain property?
...ght direction. I was able to get it in one line and I successfully hunted down the imports for Hamcrest 1.3.
the imports:
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.beans...
Angular HttpPromise: difference between `success`/`error` methods and `then`'s arguments
According to AngularJS doc , calls to $http return the following:
6 Answers
6
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Redirect stderr and stdout in Bash
I want to redirect both stdout and stderr of a process to a single file. How do I do that in Bash?
15 Answers
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Are foreign keys really necessary in a database design?
...er to manipulate data in the correct way. Suppose a programmer is actually doing this in the right manner already, then do we really need the concept of foreign keys?
...
When to wrap quotes around a shell variable?
...s often leads to the shell breaking apart a single argument into many.
$? doesn't need quotes since it's a numeric value. Whether $URL needs it depends on what you allow in there and whether you still want an argument if it's empty.
I tend to always quote strings just out of habit since it's safer...
Adding a column to an existing table in a Rails migration
...w migration (rails generate migration add_email_to_users email:string will do the trick).
It will create a migration file containing line:
add_column :users, email, string
Then do a rake db:migrate and it'll run the new migration, creating the new column.
If you have not yet run the original migrat...