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How to get a random number in Ruby
How do I generate a random number between 0 and n ?
17 Answers
17
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How to backup a local Git repository?
... if we are inside a git repo
`git status 2>&1`
if $?.exitstatus != 0
puts 'fatal: Not a git repository: .git or at least cannot get zero exit status from "git status"'
exit 2
else # git status success
until File::directory?( Dir.pwd + '/' + git_dir_name ) \
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Is AngularJS just for single-page applications (SPAs)?
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Ben LeshBen Lesh
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How can I exclude some folders from my Eclipse project?
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answered Jul 27 '09 at 12:30
Rich SellerRich Seller
78.3k2222 gold badges167167 silver badges173173 bronze badges
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What do we mean by Byte array? [closed]
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answered Oct 26 '10 at 0:29
PhilPhil
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Unresolved specs during Gem::Specification.reset:
...s when running 'gem cleanup' so I found this: stackoverflow.com/questions/4007074/… Turns out it had to do with RVM. When I ran 'rvm gemset use global' and ran guard, the errors went away.
– reneruiz
Aug 8 '13 at 18:54
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Android accelerometer accuracy (Inertial navigation)
...useless in practice.
Here is an explanation why (Google Tech Talk) at 23:20. I highly recommend this video.
It is not the accelerometer noise that causes the problem but the gyro white noise, see subsection 6.2.3 Propagation of Errors. (By the way, you will need the gyroscopes too.)
As for indoor...
How do I get an element to scroll into view, using jQuery?
...nt):
var offset = $(this).offset(); // Contains .top and .left
Subtract 20 from top and left:
offset.left -= 20;
offset.top -= 20;
Now animate the scroll-top and scroll-left CSS properties of <body> and <html>:
$('html, body').animate({
scrollTop: offset.top,
scrollLeft: off...
Android: Generate random color on click?
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answered Mar 12 '11 at 6:08
LumisLumis
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SQL - many-to-many table primary key
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edited Apr 30 '15 at 3:16
answered Feb 3 '10 at 7:20
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