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Run JavaScript when an element loses focus
...ut onblur event :
<input type="text" name="name" value="value" onblur="alert(1);"/>
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How is Node.js inherently faster when it still relies on Threads internally?
...text switch model, layered on top of the more appropriate (value judgement alert :) and more efficient (not a value judgement) preemptive model. This happens for two reasons, first, most programmers don't seem to understand priority preemption, and second, if you learn threading in a windows environ...
How can I build a small operating system on an old desktop computer? [closed]
..., read, read, read, read. You need to have a firm understanding of how the OS works before you can hope to implement your own.
Grab one of Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college:
Modern Operating Systems PDF
Modern Operating Systems on...
Eclipse Kepler for OS X Mavericks request Java SE 6
I have just made a clean installation of OS X Mavericks , and I have downloaded Eclipse Kepler , but if I execute it, gives me this message:
...
How to insert a text at the beginning of a file?
...d in place while file.old is created. You can then delete file.old in your script.
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How to debug Lock wait timeout exceeded on MySQL?
...erages calculated from the last 4 seconds
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 9014315, signal count 7805377
Mutex spin waits 0, rounds 11487096053, OS waits 7756855
RW-shared spins 722142, OS waits 211221; RW-excl spins 787046, OS waits 39353
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How do I pass a string into subprocess.Popen (using the stdin argument)?
...e,
you need to give stdout=PIPE and/or
stderr=PIPE too.
Replacing os.popen*
pipe = os.popen(cmd, 'w', bufsize)
# ==>
pipe = Popen(cmd, shell=True, bufsize=bufsize, stdin=PIPE).stdin
Warning Use communicate() rather than
stdin.write(), stdout.read() or
stderr.read()...
How can I convert a string to boolean in JavaScript?
... do:
String.prototype.bool = function() {
return strToBool(this);
};
alert("true".bool());
For those (see the comments) that would like to extend the String object to get this but are worried about enumerability and are worried about clashing with other code that extends the String object:
...
Syntax for a single-line Bash infinite while loop
...ours with a bad cookie error. So I put the openconnect command in a shell script, sudo su to become root, and use this cmd line: while true; do sh /Users/myuser/bin/vpn ; done
– Blisterpeanuts
Mar 4 '15 at 14:19
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Android emulator freezing OS X v10.9 (Mavericks) with HAXM
I just updated to OS X v10.9 (Mavericks), and now whenever I start up any of my emulators, as soon as the emulator starts up, my entire computer freezes with a spinning progress indicator in the center of the screen (not a beachball, the progress indicator is similar to what you see when shutting...