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'sudo gem install' or 'gem install' and gem locations
...ife with portable gem homes and different version of Ruby all living under one roof.
For the uninitiated, from the documentation:
RVM is a command line tool which allows us to easily install, manage and work with multiple ruby environments and sets of gems.
The reason why installing gems with...
How to get function parameter names/values dynamically?
... Array.prototype.slice.call(arguments);
If Array generics are available, one can use the following instead:
var args = Array.slice(arguments);
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Twitter Bootstrap modal: How to remove Slide down effect
...red Aug 3 '12 at 22:05
Rose PerroneRose Perrone
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Open Cygwin at a specific folder
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One more thing to note. If you already did this with chere -i -t mintty -f to force the overwrite. You will still need to run cygwin as an administrator as well.
– Greg Jennings
Feb 9 '1...
How do I hide .class files from the Open Resource dialog in Eclipse?
...
One option is to filter derived resources. In the upper right corner of the 'Open Resource' dialog there is an arrow you can click to bring up a dropdown menu for filtering. Uncheck the 'Show Derived Resources' option, if i...
How to make a cross-module variable?
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For one thing, it breaks people's expectations when they're reading code. "What's this 'foo' symbol being used here? Why can't I see where it's defined?"
– Curt Hagenlocher
Aug 6 '10 at 5:05...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...anifest. The reason? I'd like to only have to change the version number in one location, the manifest file. Is there any way to do this? Thanks!
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How to use gradle zip in local system without downloading when using gradle-wrapper
...ters that aren't connected to the Internet.
– Chris Jones
Sep 18 '15 at 1:15
2
The truth is that ...
What is the use case of noop [:] in bash?
...or example in an infinite loop:
while true; do
echo 'Going on forever'
done
It's traditional to use : when the shell syntax requires a command but you have nothing to do.
while keep_waiting; do
: # busy-wait
done
The : builtin dates all the way back to the Thompson shell, it was present in...
Why doesn't java.lang.Number implement Comparable? [duplicate]
Does anyone know why java.lang.Number does not implement Comparable ? This means that you cannot sort Number s with Collections.sort which seems to me a little strange.
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