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What's the difference between the various methods to get a Context?
...en it comes to Contexts in Android, but you can piece together a few facts from various sources.
This blog post on the official Google Android developers blog was written mostly to help address memory leaks, but provides some good information about contexts as well:
In a regular Android applica...
Update R using RStudio
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You install a new version of R from the official website.
RStudio should automatically start with the new version when you relaunch it.
In case you need to do it manually, in RStudio, go to :Tools -> options -> General.
Check @micstr's answer for ...
How do I create a datetime in Python from milliseconds?
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Just convert it to timestamp
datetime.datetime.fromtimestamp(ms/1000.0)
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How to drop columns using Rails migration
...or instance:
remove_column :users, :hobby
would remove the hobby Column from the users table.
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Swift - class method which must be overridden by subclass
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Case 2: Mind the fact, that if you call super.someFunc() from the overridden method, you get the error despite the fact that you overridden it. You know that you are not suppose to call it, but someone else doesn't have to know that and just follow the standard practice.
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How do I specify the exit code of a console application in .NET?
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3 options:
You can return it from Main if you declare your Main method to return int.
You can call Environment.Exit(code).
You can set the exit code using properties: Environment.ExitCode = -1;. This will be used if nothing else sets the return code or ...
How can I pass arguments to a batch file?
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I think shift "pops" the argument from the list. The assumption by OP was that %* would only output the remaining arguments, but it doesn't work that way, as @Joey said.
– NathanAldenSr
Jun 8 '16 at 13:00
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Deleting all pending tasks in celery / rabbitmq
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From the docs:
$ celery -A proj purge
or
from proj.celery import app
app.control.purge()
(EDIT: Updated with current method.)
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How to remove all line breaks from a string
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When parsing returned data from memcached in node.js using /[\n\r]/g did the trick for me. Thanks Gone Coding! The option in the answer butchered it.
– Kyle Coots
Sep 21 '18 at 3:11
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What's the difference between SortedList and SortedDictionary?
... for different operations in different situtations. Here's a nice summary (from the SortedDictionary docs):
The SortedDictionary<TKey, TValue> generic
class is a binary search tree with
O(log n) retrieval, where n is the
number of elements in the dictionary.
In this, it is similar ...