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What's the difference between commit() and apply() in SharedPreferences

...nd apply() method from shared preference. When I use AVD 2.3 it shows no error, but when I run the code in AVD 2.1, apply() method shows error. ...
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Maven package/install without test (skip tests)

... If you are trying this in Windows Powershell, you will get this error: [ERROR] Unknown lifecycle phase ".test.skip=true". You must specify a valid lifecycle phase or a goal in the format... The reason for this is, in Powershell the "-" has special meaning and it is causing problem with...
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Commands executed from vim are not recognizing bash command aliases

I use bash on mac and one of the aliases is like this 5 Answers 5 ...
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How to know that a string starts/ends with a specific string in jQuery?

...n jQuery I tried str.startsWith('some checking string ..') this gave me an error saying, startsWith method not found.. :( but str.match worked. Thanks for your answer – Débora Apr 22 '12 at 7:01 ...
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How to debug PDO database queries?

...ated SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code. ...
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Check empty string in Swift?

... @teradyl By "didn't work," do you mean you're getting an error, having issues with autocomplete, or something else? It should work unless something changed that I'm not aware of, but autocomplete won't always pick the right version. – John Montgomery ...
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How do I convert seconds to hours, minutes and seconds?

... In python 3.5.2, I get a TypeError. I'm formatting a time.time()-start variable. Any insight? TypeError: non-empty format string passed to object.__format__ – medley56 Sep 25 '17 at 16:40 ...
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How to set an environment variable only for the duration of the script?

On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
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Print PHP Call Stack

... To log the trace $e = new Exception; error_log(var_export($e->getTraceAsString(), true)); Thanks @Tobiasz share | improve this answer | ...
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Ternary operator (?:) in Bash

...ug: if op1 has a nonzero exit status, op2 silently becomes the result; the error will also not be caught in -e mode. So, that expression is only safe to use if op1 can never fail (e.g., :, true if a builtin, or variable assignment without any operations that can fail (like division and OS calls)). ...