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Clear android application user data
...ll only work for the semi-privileged adb shell user, which is treated as somewhat comparable in authority to a user pushing buttons in GUI if the system settings app.
– Chris Stratton
Jun 7 '12 at 15:10
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Best way to check for “empty or null value”
...is best way to check if value is null or empty string in Postgres sql statements?
10 Answers
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jQuery selector regular expressions
I am after documentation on using wildcard or regular expressions (not sure on the exact terminology) with a jQuery selector.
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
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Covariance:
class Super {
Object getSomething(){}
}
class Sub extends Super {
String getSomething() {}
}
Sub#getSomething is covariant because it returns a subclass of the return type of Super#getSomething (but fullfills the contract of Super.getSomething())
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How to remove the default arrow icon from a dropdown list (select element)?
I want to remove the dropdown arrow from a HTML <select> element. For example:
12 Answers
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Android studio - Failed to find target android-18
... mac was the only thing that let IntelliJ see the newly installed SDKs for me.
– codeulike
Feb 11 '16 at 15:51
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Changing UIImage color
...e image, ignoring its color information." Nice!
– Tieme
May 10 '15 at 19:14
3
In Swift 2.0+ theIm...
Match two strings in one line with grep
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You can use
grep 'string1' filename | grep 'string2'
Or
grep 'string1.*string2\|string2.*string1' filename
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Display clearColor UIViewController over UIViewController
...ly accepted answer is still valid for legacy reasons, but this is the recommended method.
– Tomasz Bąk
Feb 19 '15 at 12:40
3
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I change the capitalization of a directory and Git doesn't seem to pick up on it
...(but case preserving) HFS+. I usually work round this like so:
$ git mv somename tmpname
$ git mv tmpname SomeName
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