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Group vs role (Any real difference?)
Can anyone tell me, what's the real difference between group and role? I've been trying to figure this out for some time now and the more information I read, the more I get the sense that this is brought up just to confuse people and there is no real difference. Both can do the other's job. I've alw...
What is Unicode, UTF-8, UTF-16?
What's the basis for Unicode and why the need for UTF-8 or UTF-16?
I have researched this on Google and searched here as well but it's not clear to me.
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What's “P=NP?”, and why is it such a famous question? [closed]
... is perhaps the most famous in all of Computer Science. What does it mean? And why is it so interesting?
6 Answers
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...bunch of mutexes or a single one for an object.
If you have many threads and the access to the object happens often, then multiple locks would increase parallelism. At the cost of maintainability, since more locking means more debugging of the locking.
How efficient is it to lock a mutex? I.e....
CSS media queries: max-width OR max-height
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Use a comma to specify two (or more) different rules:
@media screen and (max-width: 995px) , screen and (max-height: 700px) {
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}
From https://developer.mozilla.org/en/CSS/Media_queries/
...In addition, you can combine multiple media queries in a comma-separated list; if any of the ...
How to find what code is run by a button or element in Chrome using Developer Tools
I'm using Chrome and my own website.
5 Answers
5
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onKeyPress Vs. onKeyUp and onKeyDown
...ginally used in this answer.
From that link:
In theory, the onKeyDown and onKeyUp events represent keys being pressed or released, while the onKeyPress event represents a character being typed. The implementation of the theory is not same in all browsers.
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What's the difference between tilde(~) and caret(^) in package.json?
After I upgraded to latest stable node and npm , I tried npm install moment --save . It saves the entry in the package.json with the caret ^ prefix. Previously, it was a tilde ~ prefix.
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Numpy where function multiple conditions
...s[abs(dists - r - dr/2.) <= dr/2.]
It only creates one boolean array, and in my opinion is easier to read because it says, is dist within a dr or r? (Though I'd redefine r to be the center of your region of interest instead of the beginning, so r = r + dr/2.) But that doesn't answer your quest...
What are the differences between Rust's `String` and `str`?
Why does Rust have String and str ? What are the differences between String and str ? When does one use String instead of str and vice versa? Is one of them getting deprecated?
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