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What is HTML5 ARIA?

...he semantics of the various elements to assistive technologies like screen readers. Of course, for ARIA to work, the HTTP user agent that interprets the markup needs to support ARIA, but the spec is created in such a way, as to allow down-level user agents to ignore the ARIA-specific markup safely w...
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MySQL JOIN the most recent row only?

... People should (please) also read the following answer (from Danny Coulombe), because this answer (sorry Daniel) is terribly slow with longer queries / more data. Made my page "wait" for 12 seconds to load; So please also check stackoverflow.com/a/359656...
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How can I interrupt a ServerSocket accept() method?

In my main thread I have a while(listening) loop which calls accept() on my ServerSocket object, then starts a new client thread and adds it to a Collection when a new client is accepted. ...
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?

... I've read that clog also outputs to cerr. So based on that, which one do you choose? If clog is normally for "logging", why would I want that to go to the error stream? Logs seem more like "normal logs" (a.k.a. cout) than errors. ...
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How does JavaFX compare to WPF? [closed]

...va about 10 years ago, but I try to keep up with the technology in Java by reading articles, talking with friends, etc. 2 A...
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How to find out if a file exists in C# / .NET?

...path) returns false even if the file exists BUT caller lacks permission to read it. Is there a different way to handle this kind of situations and check whether a file exists even if the caller cannot read it? – ADTC Mar 5 '12 at 8:06 ...
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LINUX: Link all files from one to another directory [closed]

...try this: cd /usr/lib find /mnt/usr/lib -maxdepth 1 -print "%P\n" | while read file; do ln -s "/mnt/usr/lib/$file" "$file"; done If you should happen to want to recursively create the directories and only link files (so that if you create a file within a directory, it really is in /usr/lib not /m...
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How do I import a CSV file in R? [closed]

... You would use the read.csv function; for example: dat = read.csv("spam.csv", header = TRUE) You can also reference this tutorial for more details. Note: make sure the .csv file to read is in your working directory (using getwd()) or speci...
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Proper use of 'yield return'

... to have the next item before returning. Among other things, this helps spread the computational cost of complex calculations over a larger time-frame. For example, if the list is hooked up to a GUI and the user never goes to the last page, you never calculate the final items in the list. Anothe...
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How to track untracked content?

...h_chart_2 as a submodule is a .gitmodules file. Normally (if you had not already added it as bare gitlink entry), you would just use git submodule add: git submodule add git://github.com/korin/open_flash_chart_2_plugin.git vendor/plugins/open_flash_chart_2 As you found, this will not work if the ...