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How can I upload files asynchronously?
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With HTML5 you can make file uploads with Ajax and jQuery. Not only that, you can do file validations (name, size, and MIME type) or handle the progress event with the HTML5 progress tag (or a div). Recently I had to make a file uploader, but I didn't want to use Flash no...
/etc/apt/sources.list" E212: Can't open file for writing
...as sudo vim FILE. Or if you don't want to leave your existing vim session (and now have proper sudo rights), you can issue:
:w !sudo tee % > /dev/null
Which will save the file.
HTH
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im...
Absolute vs relative URLs
...two types of URLs: relative URLs (for pictures, CSS files, JS files, etc.) and absolute URLs.
12 Answers
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Can an abstract class have a constructor?
... what) {
super(what);
}
}
The superclass Product is abstract and has a constructor. The concrete class TimesTwo has a constructor that just hardcodes the value 2. The concrete class TimesWhat has a constructor that allows the caller to specify the value.
Abstract constructors will fre...
MemoryCache does not obey memory limits in configuration
I’m working with the .NET 4.0 MemoryCache class in an application and trying to limit the maximum cache size, but in my tests it does not appear that the cache is actually obeying the limits.
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How can I get the browser's scrollbar sizes?
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From Alexandre Gomes Blog I have not tried it. Let me know if it works for you.
function getScrollBarWidth () {
var inner = document.createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer =...
How do I abort/cancel TPL Tasks?
In a thread, I create some System.Threading.Task and start each task.
12 Answers
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How to check for changes on remote (origin) Git repository?
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"git fetch origin" and "git show-branch *master" were useful to me.
– Léa Massiot
May 16 '17 at 17:31
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What does @: (at symbol colon) mean in a Makefile?
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It means "don't echo this command on the output." So this rule is saying "execute the shell command : and don't echo the output.
Of course the shell command : is a no-op, so this is saying "do nothing, and don't tell."
Why?
The trick here is that you'...
find filenames NOT ending in specific extensions on Unix?
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Or without ( and the need to escape it:
find . -not -name "*.exe" -not -name "*.dll"
and to also exclude the listing of directories
find . -not -name "*.exe" -not -name "*.dll" -not -type d
or in positive logic ;-)
find . -not -nam...