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Doc Block posted:So, basically, it's just the regular old NOT operator, but because -~=JavaScript Programmers=~- they use it multiple times in a row so it's True Bool Comparison(tm) or something? *refreshes desktop*
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Oct 27, 2015 04:49
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| # ? Apr 26, 2024 11:01 |
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if (YOSPOS.bitch!!!!!!!!!) console.log("rule 36 biotch");
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Oct 27, 2015 09:10
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! and !! are valuable in C and C++ because while all falses compare equal, not all trues do, so !! is a good (and idiomatic) way to normalize a boolean to 0/1. many (most?) times just ! is enough, as seen for example in the idiomatic implementation of logic XOR: a XOR b -> !a != !b
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Oct 27, 2015 10:55
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in c++ if all trues don't evaluate equal your compiler is broken
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Oct 27, 2015 14:43
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well that or some rear end in a top hat put #define true (rand()%2 == 0) or some such in your code
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Oct 27, 2015 14:45
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hobbesmaster posted:in c++ if all trues don't evaluate equal your compiler is broken in c, integer style trues don't always equal. like 1 and 2 are both true, but not equal. but then you just do if(a && b) but i don't think that comes up very often if you're deliberately using boolean 0 and 1
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Oct 27, 2015 14:47
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"true" is a keyword
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Oct 27, 2015 14:53
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do JavaScript programmers really do things like if(!!a == !!b) to see if a & b are both true? instead of just using if(a && b) like a normal person?
Doc Block fucked around with this message at 15:37 on Oct 27, 2015 |
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Oct 27, 2015 15:30
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it's to cast a non bool to bool you retard what is hard to understand about it. you'd use it mostly to see if an object is empty or not
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Oct 27, 2015 17:09
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yes, i know you're casting to bool, i just don't see the point. you make it sound like container classes in javascript override ! to return a bool for whether or not they contain anything, which is p laffo if true IMHO.
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Oct 27, 2015 19:19
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drool if u bool
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Oct 27, 2015 19:24
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Doc Block posted:yes, i know you're casting to bool, i just don't see the point. everything does
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Oct 27, 2015 19:32
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pram posted:it's to cast a non bool to bool you retard what is hard to understand about it. you'd use it mostly to see if an object is empty or not object.isEmpty() simple
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Oct 27, 2015 19:54
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pram posted:everything does nice
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Oct 27, 2015 20:01
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Ludwig van Halen posted:object.isEmpty() yes and so is an exclamation mark you goddamned moron
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Oct 27, 2015 21:24
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reminds me of the accepted way of checking if an element exists on a page with jquery if($('#elemId').length) console.lol("POO");
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Oct 27, 2015 21:34
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pram posted:yes and so is an exclamation mark you goddamned moron less is more.... or is it?
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Oct 27, 2015 21:49
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echinopsis posted:less is more.... or is it? ! is cool because than you get to say bang. you can even say bang bang bang !!! makes my code very masculine, big time, mmmmmmm rapidash
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Oct 27, 2015 22:14
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