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Class type check in TypeScript
...ich is new for ActionScript 3.0, allows you to test whether a variable or expression is a member of a given data type. In previous versions of ActionScript, the instanceof operator provided this functionality, but in ActionScript 3.0 the instanceof operator should not be used to test for data type m...
How to disable “Save workspace image?” prompt in R?
When I exit the interactive R shell, it displays an annoying prompt every time:
11 Answers
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What are file descriptors, explained in simple terms?
...file descriptors, if you open lots of files at once. Which will prevent *nix systems from running, since they open descriptors to stuff in /proc all the time.
– Spencer Rathbun
May 10 '12 at 12:51
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raw vs. html_safe vs. h to unescape html
...is to "revert" an html_safe declaration, pretty unusual.
Prepending your expression with raw is actually equivalent to calling to_s chained with html_safe on it, but is declared on a helper, just like h, so it can only be used on controllers and views.
"SafeBuffers and Rails 3.0" is a nice explana...
Vagrant reverse port forwarding?
...ing vagrant ssh -- -R 12345:localhost:80 This follows the ssh option syntax -R [bind_address:]port:host:hostport, where the first number is the port number to listen on inside the guest machine, and the last two are the service address as visible from the host machine.
– Eero
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Ukkonen's suffix tree algorithm in plain English
...ck at this point. I've spent days trying to fully wrap my head around suffix tree construction, but because I don't have a mathematical background, many of the explanations elude me as they start to make excessive use of mathematical symbology. The closest to a good explanation that I've found is F...
Object.getOwnPropertyNames vs Object.keys
... Object.getOwnPropertyNames and Object.keys in javascript? Also some examples would be appreciated.
5 Answers
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How to find the width of a div using vanilla JavaScript?
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This answer has a detailed visual explanation of the difference between offsetWidth and clientWidth.
– Tony O'Hagan
Mar 5 '18 at 0:58
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Matplotlib: “Unknown projection '3d'” error
I just installed matplotlib and am trying to run one of there example scripts. However I run into the error detailed below. What am I doing wrong?
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What's the point of g++ -Wreorder?
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This should really be the example in the documentation.
– Ben S
Dec 1 '09 at 18:42
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