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What's the difference between lists and tuples?

...because a tuple is already supposed to have structure. This underlines the idea that tuples are a light-weight alternative to classes and instances. share | improve this answer | ...
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PHP random string generator

... @FranciscoPresencia do you have any idea how horrifically inefficient that is? You are checking the length of a string twice per iteration! The strlen inside the loop should be cached in a variable before entering the loop as well. – devel...
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Dynamic constant assignment

... mis-steps -- these should either be fully immutable, or dump the constant idea altogether. From a coder's perspective, a constant is declarative and intentional, a signal to other that "this value is truly unchangeable once declared/assigned." But sometimes an "obvious declaration" actually forec...
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Does the ternary operator exist in R?

...e the ? operator to (almost) work like the ternary operator (THIS IS A BAD IDEA): `?` <- function(x, y) { y <-substitute(y); if(x) eval(y[[2]], parent.frame()) else eval(y[[3]], parent.frame()) } x <- 1:3 length(x) ? (x*2) : 0 x <- numeric(0) length(x) ? (x*2) : 0 for(i in 1:5) cat(i,...
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How to count total lines changed by a specific author in a Git repository?

...ons, but what are the numbers telling me? There are two rows and I have no idea what they are telling me. Lines chenged and added? – Informatic0re Aug 7 '15 at 12:58 2 ...
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Where should Rails 3 custom validators be stored?

... Good idea but your code needs some cleanup: config.autoload_paths += %W(#{config.root}/lib/validators/) – aNoble May 26 '11 at 20:46 ...
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Can I delete a git commit but keep the changes?

...sh apply In your case you moved around branches a bit more, but the same idea still applies. Hope this helps. share | improve this answer | follow | ...
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Should I use char** argv or char* argv[]?

... Had no idea this one exists: *argv[static 1] – superlukas Mar 1 '15 at 3:33 add a comment ...
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if a ngSrc path resolves to a 404, is there a way to fallback to a default?

...h a solution to more or less the same issue in a system I'm building. My idea was, though, to handle EVERY image img tag globally. I didn't want to have to pepper my HTML with unnecessary directives, such as the err-src ones shown here. Quite often, especially with dynamic images, you won't know ...
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Finding the PHP File (at run time) where a Class was Defined

...e curiosity here. What made you think this answer was any better than the idea I'd already considered and rejected? " I realize I could use (get_included_files()) to get a list of all the files that have been included so far and then parse them all manually, but that's a lot of file system access ...