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Controlling a USB power supply (on/off) with Linux
...ks for that. I was thinking I had to go through libUSB no matter what. Any idea how to get the names of the attached devices as well?
– kamziro
Jan 15 '11 at 21:56
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Does Ruby regular expression have a not match operator like “!~” in Perl?
... string doesn't contain "bar".
In Ruby, particularly with a modern style guide, I think a more explicit solution is more conventional and easy to understand:
input = 'foobar'
do_something unless input.match?(/bar/)
needs_bar = !input.match?(/bar/)
That said, I think it would be spiffy if there w...
presentModalViewController:Animated is deprecated in ios6
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Im getting this error 'UIApplicationInvalidInterfaceOrientation', reason: 'preferredInterfaceOrientationForPresentation must return a supported interface orientation!'
– Ram
Apr 8 '13 at 8:14
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Understand homebrew and keg-only dependencies
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@Alex Like echristopherson said: It is linked against a specific version of openssl (during installation). Have a look at the python Brew Formula; there you can see that the path (brew's prefix) of the openssl@1.1 formula is used as arg, which in turn is...
Define global variable in a JavaScript function
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Yes, as the others have said, you can use var at global scope (outside of all functions) to declare a global variable:
<script>
var yourGlobalVariable;
function foo() {
// ...
}
</script>
Alternately, you can assign to a property on...
Check if an image is loaded (no errors) with jQuery
...browser to develop for, try developing for Internet Explorer 7 or less. Besides adding a $_GET parameter to the image load, will load a new image everytime, like Gromix suggested.
– SSH This
Jan 14 '13 at 23:51
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How do I make class methods / properties in Swift?
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@ErikKerber Good to know, didn't yet need them so haven't tested myself, thanks.
– Pascal
Jun 6 '14 at 18:22
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Should JAVA_HOME point to JDK or JRE?
...Java Development Kit) where utilities such as javac (the Java Compiler) reside. Otherwise, you can point to the JRE (Java Runtime Environment).
The JDK contains everything the JRE has and more. If you're just executing Java programs, you can point to either the JRE or the JDK.
...
When using the Java debugger in Intellij what does “Drop Frame” mean?
...inally led to your break point. You need to be aware of this - I often consider it a useful feature to explore different paths of execution without having to restart the application or a particular lengthy process that led to the current stack. Combined with the change of variable values also availa...
What's the difference between subprocess Popen and call (how can I use them)?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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