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Force unmount of NFS-mounted directory [closed]
...ything (including lsof). I caused the problem by breaking out of a backup script that I'm writing. The script mounts and unmounts the directory, but something about breaking out of rsync messed up my mount. I didn't know about the lazy unmount. It may have been the NAS device causing all the tro...
How do I cancel a build that is in progress in Visual Studio?
...is 3 seconds before I read this. I would just add MSBuild to the kill bill script above
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Finding current executable's path without /proc/self/exe
...eck for a pathname in the environment explicitly passed in by your wrapper script, if any.
Optional: As a last resort try environment variable "_". It might point to a different program entirely, such as the users shell.
Resolve symlinks, there may be multiple layers. There is the possibility of ...
How do you 'redo' changes after 'undo' with Emacs?
...ntuitive. This should be in the default packages. One comment: I wish some alert message was also shown when redoing from a branch point, not just when reverting to it. For example, when user calls a redo: 'Redoing from a branch point' or 'Default redo branch used' - just to alert the user that ther...
Google Chrome Extensions - Can't load local images with CSS
I have a simple Chrome extension that uses the content script feature to modify a website. More specifically, the background-image of said website.
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Get div height with plain JavaScript
...
jsFiddle
var element = document.getElementById('element');
alert(element.offsetHeight);
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return, return None, and no return at all?
... of the prisoners. If we don't find the prisoner with a knife, we raise an alert. This could be done in many different ways and using return is probably not even the best way, but it's just an example to show how to use return for exiting a function.
def find_prisoner_with_knife(prisoners):
for...
Why is January month 0 in Java Calendar?
... bugs.
That being said, the inconsistency is confusing, especially in javascript (which also has inherited this "feature"), a scripting language where this should be abstracted far away from the langague.
TL;DR: Because months have names and days of the month do not.
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Get selected text from a drop-down list (select box) using jQuery
...
This works for me
$("#dropdownid").change(function() {
alert($(this).find("option:selected").text());
});
If the element created dynamically
$(document).on("change", "#dropdownid", function() {
alert($(this).find("option:selected").text());
});
...
WebSockets protocol vs HTTP
...TP. It is not. It's an extension.
The main use-case of WebSockets are Javascript applications which run in the web browser and receive real-time data from a server. Games are a good example.
Before WebSockets, the only method for Javascript applications to interact with a server was through XmlHtt...