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How does '20 seconds' work in Scala?
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There are a few things going on.
First, Scala allows dots and parens to be omitted from many method calls, so 20 seconds is equivalent to 20.seconds()*.
Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches for an impli...
Functional design patterns [closed]
.... Can anyone recommend an article/book which covers them well in one place and which can be accessible to a programmer with intermediate skills in FP?
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How to filter files when using scp to copy dir recursively?
... probably recommend using something like rsync for this due to its include and exclude flags, e.g:-
rsync -rav -e ssh --include '*/' --include='*.class' --exclude='*' \
server:/usr/some/unknown/number/of/sub/folders/ \
/usr/project/backup/some/unknown/number/of/sub/folders/
Some other useful fla...
Best explanation for languages without null
...deling a door. It can be in one of three states: open, shut but unlocked, and shut and locked. Now I could model it along the lines of
class Door
private bool isShut
private bool isLocked
and it is clear how to map my three states into these two boolean variables. But this leaves a fou...
How do I include related model fields using Django Rest Framework?
...ed the answer to explain why depth wouldn't do what you need in this case, and to explain the exception you're seeing and how to deal with it.
– Tom Christie
Jan 29 '13 at 13:20
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Android Studio: Module won't show up in “Edit Configuration”
I've imported a project to Android Studio with several subprojects.
28 Answers
28
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How to get the focused element with jQuery?
...g to search the whole DOM tree.
The answer is:
document.activeElement
And if you want a jQuery object wrapping the element:
$(document.activeElement)
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How to delete projects in IntelliJ 12?
...of the project you just deleted. So I am thinking there should be another (and really easy way) to delete a project.
10 Ans...
Heroku deployment error H10 (App crashed)
...on heroku were not revealing any clues. I read other answers on this page and broke out in a sweat after seeing "rebuilding the app." I figured maybe I could get in the heroku console and look around. I did and even the console crashed, but this time it told me why. It was some obscure variable ...
What's the difference between the various methods to get a Context?
In various bits of Android code I've seen:
8 Answers
8
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