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Why is volatile needed in C?
...laying with data that isn't concurrency protected. And yes there are valid times to be doing that, you can for example write a thread safe circular message queue without needing explicit concurrency protection, but it will need volatiles.
– Gordon Wrigley
Oct 2...
Forced naming of parameters in Python
...ther alternatives can be anticipated.
Cons:
Checking occurs during run-time, not compile-time.
Use of an extra parameter (though not argument) and an additional check. Small performance degradation respect to regular functions.
Functionality is a hack without direct support by the language (see...
Add file extension to files with bash
... this elegant and simple solution -- I have landed on this answer multiple times, but can't seem to memorize it. #dejavu
– Tim Andersen
Jan 30 '19 at 18:11
add a comment
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How can I comment a single line in XML?
...the bottom comment. The downside is having to edit the bottom comment each time, which would probably make it easier to just type in <!-- at the top and --> at the bottom each time.
I also want to mention that other commenters recommend using an XML editor that allows you to right-click and c...
Replace whitespaces with tabs in linux
...ere're many ways to do something. If you plan to do this substitution many times you will search a solution with a good performance, but if you are going to do it only once, you will serach for a solution wich involves a command that make you feel confortable.
– Jonathan
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How do I replace a character at a particular index in JavaScript?
...m ipsum" paragraphs and it took a few milliseconds. Then I tested it on 10 times larger string - there was really no big difference. Hm.
@vsync, @Cory Mawhorter: Your comments are unambiguous; however, again, what is a large string? I agree that for 32...100kb performance should better and one shou...
How to call a parent method from child class in javascript?
...rs to complain that it's depreciated) which is depreciated but at the same time discovered that it is actually an essential tool for sub-classing needs (especially for the Array sub-classing needs though). So while the __proto__ property is still available in all major JS engines that i know, ES6 in...
Differences between ExpandoObject, DynamicObject and dynamic
...a keyword that tells the compiler to ignore static type checking at design-time and instead to use late-binding at run-time. So we're not going to spend much time on dynamic in the rest of this answer.
ExpandoObject and DynamicObject are indeed types. On the SURFACE, they look very similar to each ...
Remove all occurrences of a value from a list?
...list (up until they find a match) so you end up scanning the list multiple times that way.
– John Kugelman
Jul 21 '09 at 3:24
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Why can a function modify some arguments as perceived by the caller, but not others?
...ee with J.F. Sebastian, but you might find this useful as a shortcut:
Any time you see varname =, you're creating a new name binding within the function's scope. Whatever value varname was bound to before is lost within this scope.
Any time you see varname.foo() you're calling a method on varname...