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Usages of Null / Nothing / Unit in Scala
...mple is this:
implicit def zeroNull[B >: Null] =
new Zero[B] { def apply = null }
Nothing is used in the definition of None
object None extends Option[Nothing]
This allows you to assign a None to any type of Option because Nothing 'extends' everything.
val x:Option[String] = None
...
How do I access call log for android?
...uration = managedCursor.getColumnIndex(CallLog.Calls.DURATION);
sb.append("Call Details :");
while (managedCursor.moveToNext()) {
String phNumber = managedCursor.getString(number);
String callType = managedCursor.getString(type);
String callDate = ...
Doctrine - How to print out the real sql, not just the prepared statement?
...tParameters(); will NOT return parameters in correct order, as they should appear in prepared query statement
– gondo
Dec 9 '16 at 13:16
4
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How to add ASP.NET 4.0 as Application Pool on IIS 7, Windows 7
...development project to Windows 7.
One of the things that I need to run the application is to select ASP.NET v4.0 as the application pool within IIS.
...
滚动布局管理器拓展 - ScrollArrangementHandler · App Inventor 2 中文网
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How do I detect that an iOS app is running on a jailbroken phone?
If I want my app to behave differently on a jailbroken iPhone, how would I go about determining this?
17 Answers
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What is the difference between user and kernel modes in operating systems?
...
So per se, To run a user space process, it must be mapped to kernel space?
– roottraveller
Sep 9 '17 at 12:57
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curl json post request via terminal to a rails app
I'm trying to create a user on my rails app with a curl command from os x terminal. No matter how I format the data, the app returns a responses that non of my validations have passed.
...
Detach many subdirectories into a new, separate Git repository
... a subshell and using ext glob (as kynan suggested), try this much simpler approach:
git filter-branch --index-filter 'git rm --cached -qr --ignore-unmatch -- . && git reset -q $GIT_COMMIT -- apps/AAA libs/XXX' --prune-empty -- --all
As mentioned by void.pointer in his/her comment, this w...
How to set different label for launcher rather than activity title?
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Apparently <intent-filter> can have a label attribute. If it's absent the label is inherited from the parent component (either Activity or Application). So using this, you can set a label for the launcher icon, while st...