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How do I get an empty array of any size in python?
...t the same obj appears in each element of the array. If it a mutable obj, and you modify one item, all will be changed. ...But, for this example using integers (or any other immutable type), it makes no difference. Or, if you just assign to elements, it is not a problem either. (I mention it bec...
How to ignore xargs commands if stdin input is empty?
Consider this command:
6 Answers
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How to use my view helpers in my ActionMailer views?
... this case (Rails 3.2.8): I have a method defined in ApplicationController and make it a helper by helper_method :my_helper_wannabe, but the method "my_helper_wannabe" doesn't become available in mailer.
– Giang Nguyen
Nov 7 '12 at 7:23
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CSS horizontal centering of a fixed div?
...ad answer for its day - it was a good answer, but because it no longer is, and the next-highest answer needs all the help it can get to be seen as the best answer NOW. Quentin: I think it would be a good idea to edit in a comment to that effect in the answer itself - I'd then reverse my down vote.
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Find first element in a sequence that matches a predicate
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I am a python newbie and read the docs and the ifilter uses the "yield" method. I assume this means that the predicate is lazily evaluated as we go. i.e, we dont run the predicate through the entire list because I have a predicate function that i...
Find unmerged Git branches?
I have a Git repository with many branches, some of them already merged and some not. Since the number of branches is quite large, how can I determine which branches have not yet been merged? I would like to avoid having to do an "octopus" merge and re-merging branches that have already been merged....
Show which git tag you are on?
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Edit: Jakub Narębski has more git-fu. The following much simpler command works perfectly:
git describe --tags
(Or without the --tags if you have checked out an annotated tag. My tag is lightweight, so I need the --tags.)
original answer follows:
git describe --exact-match --tags $(git log...
Adding up BigDecimals using Streams
...ded a totalMapper variable, that has a function from Invoice to BigDecimal and returns the total price of that invoice.
Then I obtain a Stream<Invoice>, map it to a Stream<BigDecimal> and then reduce it to a BigDecimal.
Now, from an OOP design point I would advice you to also actually ...
Create a tag in a GitHub repository
I have a repository in GitHub and I need to tag it.
I tagged in a shell, but on GitHub , it is not showing up.
7 Answ...
What's the meaning of 'origin' in 'git push origin master'
... git repository you cloned from. Have a look at .git/refs/remotes/origin/* and .git/config within your sources to see how git knows about it.
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