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Group by multiple columns in dplyr, using string vector input
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Does the call to one_of() do anything here? I think it is redundant in this context, as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
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How to optimize for-comprehensions and loops in Scala?
...s Java. I'm revisiting some Project Euler problems in Scala that I originally tackled in Java. Specifically Problem 5: "What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
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Git push rejected after feature branch rebase
...hat remote branch can be fast-forwarded to your local branch, that is that all the difference between local and remote branches is in local having some new commits at the end like that:
Z--X--R <- origin/some-branch (can be fast-forwarded to Y commit)
\
T--Y <...
What exactly does git's “rebase --preserve-merges” do (and why?)
...it, and deal with some extra wrinkles
The most interesting part, conceptually, is perhaps in picking what the new commit's merge parents should be.
Replaying merge commits also require explicitly checking out particular commits (git checkout <desired first parent>), whereas normal rebase do...
rails i18n - translating text with links inside
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en.yml
log_in_message_html: "This is a text, with a %{href} inside."
log_in_href: "link"
login.html.erb
<p> <%= t("log_in_message_html", href: link_to(t("log_in_href"), login_path)) %> </p>
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What's the common practice for enums in Python? [duplicate]
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@Joan You could do _unused, Shaded, Shiny, Transparent, Matte = range(5)
– zekel
Dec 9 '10 at 2:12
81
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`staticmethod` and `abc.abstractmethod`: Will it blend?
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class abstractstatic(staticmethod):
__slots__ = ()
def __init__(self, function):
super(abstractstatic, self).__init__(function)
function.__isabstractmethod__ = True
__isabstractmethod__ = True
class A(object):
__metaclass__ = abc.AB...
Have a reloadData for a UITableView animate when changing
...the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks.
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How to check if an object is a list or tuple (but not string)?
...quence; otherwise, if it is indexable or iterable, it's a sequence:
def is_sequence(arg):
return (not hasattr(arg, "strip") and
hasattr(arg, "__getitem__") or
hasattr(arg, "__iter__"))
def srepr(arg):
if is_sequence(arg):
return '<' + ", ".join(srepr(x) f...
Find UNC path of a network drive?
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What a practical and quick solution for all of us in corporate lock-down environments! Much appreciated workaround!
– Marcus Mangelsdorf
Sep 17 '19 at 13:14
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