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Making custom right-click context menus for my web-app
I've a few websites like google-docs and map-quest that have custom drop down menus when you right-click. Somehow they override the browser's behavior of drop-down menu, and I'm now sure exactly how they do it. I found a jQuery plugin that does this, but I'm still curious about a few things:
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Difference between thread's context class loader and normal classloader
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Each class will use its own classloader to load other classes. So if ClassA.class references ClassB.class then ClassB needs to be on the classpath of the classloader of ClassA, or its parents.
The thread context classloader is the current class...
How can I select and upload multiple files with HTML and PHP, using HTTP POST?
I have experience doing this with single file uploads using <input type="file"> . However, I am having trouble doing uploading more than one at a time.
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Why implement interface explicitly?
So, what exactly is a good use case for implementing an interface explicitly?
11 Answers
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What does `kill -0 $pid` in a shell script do?
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sending the signal 0 to a given PID just checks if any process with the given PID is running and you have the permission to send a signal to it.
For more information see the following manpages:
kill(1)
$ man 1 kill
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If sig is 0, then no signal is sent, but error checking is still pe...
Deleting a resource using http DELETE
...uld happen if two users did a DELETE on the same resource simultaneously. It makes sense for the second request to get a 404. The same should be true if one user makes two requests.
I am guessing that having DELETE return two different responses does not feel idempotent to you. I find it useful ...
Checking if a variable is not nil and not zero in ruby
...follow
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edited Jul 18 '11 at 9:45
answered Oct 31 '08 at 0:36
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Check whether HTML element has scrollbars
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I found this somewhere a couple of weeks ago. It worked for me.
var div = document.getElementById('container_div_id');
var hasHorizontalScrollbar = div.scrollWidth > div.clientWidth;
var hasVerticalScrollbar = div.scrollHeight > div.clientHeight;
/* you'll get t...
How can I determine the direction of a jQuery scroll event?
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edited Mar 21 '13 at 17:50
user372743
answered Dec 1 '10 at 17:04
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Variable's scope in a switch case [duplicate]
I think I don't understand how the scope works in a switch case.
7 Answers
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