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JavaScript click event listener on class
...mp; base.contains(closest)) {
// passes the event to the handler and sets `this`
// in the handler as the closest parent matching the
// selector from the target element of the event
handler.call(closest, event);
}
});
}
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EDIT:...
Rails: Default sort order for a rails model?
...er for you!
In fact they are Class level methods as they operate on the 1 set of 'all' records.
Their format is changing however, with rails 4 there are deprecation warning when using #scope without passing a callable object. For example scope :red, where(color: 'red') should be changed to scope :...
Storing Image Data for offline web application (client-side storage database)
...have a language problem. Do you any place that we can get a world-wide OSM set of slippy tiles (PNG or JPG) to zoom level 10?
– Dr.YSG
May 27 '13 at 14:53
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Network tools that simulate slow network connection [closed]
...
You can completely reset all tc rules for loopback with the single command sudo tc qdisc del dev lo root - change lo to eth0 if you're using a wired connection etc
– Hamish Downer
Sep 18 '13 at 14:26
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Query EC2 tags from within instance
...tag on it.
Assumes EC2_PRIVATE_KEY and EC2_CERT environment variables are set.
ec2-describe-tags \
--filter "resource-type=instance" \
--filter "resource-id=$(ec2-metadata -i | cut -d ' ' -f2)" \
--filter "key=Name" | cut -f5
This returns Foo.
...
SQLAlchemy: Creating vs. Reusing a Session
...es to mapped objects. If you leave it with its default "expire_on_commit" setting, then all the objects are expired after a commit. If that Session hangs around for five or twenty minutes, and all kinds of things have changed in the database the next time you use it, it will load all brand new sta...
Why use argparse rather than optparse?
... For anyone coming to the above comment late, argparse has you set the prefix and the name, and most parsers are written as parser.add_argument('--long-opt', '-l',...); '--' is handled easily, and however you like.
– SilverbackNet
Jan 30 at 6:59
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What is mutex and semaphore in Java ? What is the main difference?
...ns. This thread can handle 10 clients simultaneously. Then each new client sets the semaphore until it reaches 10. When the Semaphore has 10 flags, then your thread won't accept new connections
Mutex are usually used for guarding stuff. Suppose your 10 clients can access multiple parts of the syste...
Why are unsigned int's not CLS compliant?
...an build dynamically typed languages, the goal of the CLS was to provide a set of standards that transcend language functionality and allow them to interoperate sucessfully and safely. I don't think what a language can do in terms of say adding DL features is directly related to the what should go i...
JavaScript/jQuery to download file via POST with JSON data
...innerHTML += takes the HTML text of the body, appends the iframe HTML, and sets the innerHTML of the page to that string. This will wipe out any event bindings your page has, amongst other things. Create an element and use appendChild instead.
$.post('/create_binary_file.php', postData, function(re...