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What is an invariant?
The word seems to get used in a number of contexts. The best I can figure is that they mean a variable that can't change. Isn't that what constants/finals (darn you Java!) are for?
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Make anchor link go some pixels above where it's linked to
I'm not sure the best way to ask/search for this question:
21 Answers
21
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Does application.yml support environment variables?
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Try ${OPENSHIFT_DIY_PORT} (the usual Spring placeholder notation). See here for docs.
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Convert XML String to Object
...se the xsd.exe tool which gets installed with the Windows SDK into a directory something similar to:
C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin
And on 64-bit computers:
C:\Program Files (x86)\Microsoft SDKs\Windows\v6.0A\bin
And on Windows 10 computers:
C:\Program Files (x86)\Microsof...
Replace multiple whitespaces with single whitespace in JavaScript string
I have strings with extra whitespaces, each time there's more than only one whitespace I'd like it be only one.
11 Answers
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How to check if an element is in an array
...eck if an element exists in an array? Xcode does not have any suggestions for contain , include , or has , and a quick search through the book turned up nothing. Any idea how to check for this? I know that there is a method find that returns the index number, but is there a method that returns ...
class name and method name dropdown list is missing (visual studio setting)
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Tools-->Options...
Text Editor-->All Languages
Check "Navigation Bar."
(Picture is from VS2013)
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Remove specific commit
I was working with a friend on a project, and he edited a bunch of files that shouldn't have been edited. Somehow I merged his work into mine, either when I pulled it, or when I tried to just pick the specific files out that I wanted. I've been looking and playing for a long time, trying to figure o...
Correct way to close nested streams and writers in Java [duplicate]
Note: This question and most of its answers date to before the release of Java 7. Java 7 provides Automatic Resource Management functionality for doing this easilly. If you are using Java 7 or later you should advance to the answer of Ross Johnson .
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Warning the user/local/mysql/data directory is not owned by the mysql user
...d, and in the panel prefs appears 'warning the user/local/mysql/data directory is not owned by the mysql user', you have to:
sudo chown -RL root:mysql /usr/local/mysql
sudo chown -RL mysql:mysql /usr/local/mysql/data
sudo /usr/local/mysql/support-files/mysql.server start
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