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Should accessing SharedPreferences be done off the UI Thread?
...ou're using SharedPreferences, a simple XML file...) You don't want to fault it in the future time some user clicks a button.
but whenever you call context.getSharedPreferences(...), the backing XML file is stat'd to see if it's changed, so you'll want to avoid those stats during UI events anyway. ...
why does DateTime.ToString(“dd/MM/yyyy”) give me dd-MM-yyyy?
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Slash is a date delimiter, so that will use the current culture date delimiter.
If you want to hard-code it to always use slash, you can do something like this:
DateTime.ToString("dd'/'MM'/'yyyy")
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How can I reference a commit in an issue comment on GitHub?
...ou can also get it with git log, it will show up on the lines with commit <SHA>. And if that doesn't work, it could be you did not do the git push origin master. Also, there is a bug in github, there must be at least one character after the <SHA> or it doesn't get detected. It can just b...
unresolved reference to object [INFORMATION_SCHEMA].[TABLES]
...019, I had this issue with a database project which had originally been built in 2017. To fix it, I had to remove and re-add the reference to "master"
– Alan Hadsell
Aug 29 at 15:50
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What is the difference between a weak reference and an unowned reference?
...words? This distinction has to do with the fact that Optional types are built-in the Swift language. Long story short about them: optional types offer memory safety (this works beautifully with Swift's constructor rules - which are strict in order to provide this benefit).
A weak reference allows th...
How can I select rows with most recent timestamp for each key value?
...1K sensors, so trying to join the table with itself on a timestamp-based filter is very resource-intensive; the above takes a couple of seconds.
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How can a time function exist in functional programming?
... and prints it. Applying this to the actions previously mentioned, the result is... tadaaa... a new action which gets the current time and prints it. And this is incidentally exactly how it is done in Haskell.
Prelude> System.Time.getClockTime >>= print
Fri Sep 2 01:13:23 東京 (標準...
Difference between map and collect in Ruby?
...y supported (or may be defined) in many procedural, object oriented, and multi-paradigm languages as well: In C++'s Standard Template Library, it is called transform, in C# (3.0)'s LINQ library, it is provided as an extension method called Select. Map is also a frequently used operation in high leve...
What does a tilde do when it precedes an expression?
...r ask a Python programmer not to use them. Similarly value = value || default in JavaScript is a common and valid idiom as long as you know when you can and can't use it.
– gman
May 16 '14 at 4:37
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What is the difference between Normalize.css and Reset CSS?
...lize.css.
The main differences are:
Normalize.css preserves useful defaults rather than "unstyling" everything. For example, elements like sup or sub "just work" after including normalize.css (and are actually made more robust) whereas they are visually indistinguishable from normal text after in...