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ruby system command check exit code
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Does Java have something like C#'s ref and out keywords?
... changeString( abc );
out.println( abc ); // prints def
}
Out
void setString( _<String> ref ) {
str.s( "def" );
}
void testOut(){
_<String> abc = _<String>();
setString( abc );
out.println(abc); // prints def
}
And basically any other type such as:
_<I...
Multiple select statements in Single query
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Why start a shell command with a backslash?
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Rails check if yield :area is defined in content_for
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How do I revert master branch to a tag in git?
...
You can do
git checkout master
git reset --hard tag_ABC
git push --force origin master
Please note that this will overwrite existing history in the upstream repo and may cause problems for other developers who have this repo checked out.
...
Postgresql query between date ranges
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What is the difference between exit(0) and exit(1) in C?
...as an argument to exit function are implementation defined but are usually set to respectively 0 and a non-zero number. (POSIX requires EXIT_SUCCESS to be 0). So usually exit(0) means a success and exit(1) a failure.
An exit function call with an argument in main function is equivalent to the state...
How to select only the records with the highest date in LINQ
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Error in : object of type 'closure' is not subsettable
... example
mean[1]
## Error in mean[1] : object of type 'closure' is not subsettable
mean[[1]]
## Error in mean[[1]] : object of type 'closure' is not subsettable
mean$a
## Error in mean$a : object of type 'closure' is not subsettable
The closure mentioned in the error message is (loosely) the func...