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Fix a Git detached head?
...ed HEAD
Run git branch tmp - this will save your changes in a new branch called tmp.
Run git checkout master
If you would like to incorporate the changes you made into master, run git merge tmp from the master branch. You should be on the master branch after running git checkout master.
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How to force HTTPS using a web.config file
...round Google and StackOverflow trying to find a solution to this, but they all seem to relate to ASP.NET etc.
9 Answers
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What's the difference between getPath(), getAbsolutePath(), and getCanonicalPath() in Java?
...te path.
Converting from a path to a canonical path makes it absolute (usually tack on the current working directory so e.g. ./file.txt becomes c:/temp/file.txt). The canonical path of a file just "purifies" the path, removing and resolving stuff like ..\ and resolving symlinks (on unixes).
Also ...
Getting ssh to execute a command in the background on target machine
...a race
condition [2]. This problem can also
be overcome by redirecting all three
I/O streams:
nohup myprogram > foo.out 2> foo.err < /dev/null &
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How can I get PHPUnit MockObjects to return different values based on a parameter?
...ay('firstparam', 'secondparam', 'retval'),
array('modes', 'foo', array('Array', 'of', 'modes'))
)
)
);
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How can I pass a parameter to a setTimeout() callback?
...tipage/…). However, using a string instead of a function object is generally considered poor style because it is essentially a form of delayed eval().
– Miles
Jul 27 '09 at 21:41
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Check if a method exists
...
You're looking for respondsToSelector:-
if ([foo respondsToSelector: @selector(bar)] {
[foo bar];
}
As Donal says the above tells you that foo can definitely handle receiving the bar selector. However, if foo's a proxy that forwards bar to some underlying object tha...
How to return multiple lines JSX in another return statement in React?
...
Try to think of the tags as function calls (see docs). Then the first one becomes:
{[1,2,3].map(function (n) {
return React.DOM.p(...);
})}
And the second one:
{[1,2,3].map(function (n) {
return (
React.DOM.h3(...)
React.DOM.p(...)
)
})}
It sh...
“Java DateFormat is not threadsafe” what does this leads to?
...ava DateFormat not being thread safe and I understand the concept theoretically.
11 Answers
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Creating an R dataframe row-by-row
...ke to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list.
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