In Javascript, Math.random() produces a float value between 0 and 1, so I multiply by 1000 and round it to get a larger integer. The value %2==0 is a non-library way of performing isEven() on the random integer (value % 2 is 0 if even, 1 if odd, and the ==0 makes it return a boolean). When used in the if statement, it’s essentially a coin flip.
does javascript not allow you to interpret integers as booleans in a conditions directly? seems it’d be simpler to just do math.round(math.random()), which should still get you true (1) or false (0) in equal likelihood. or am i missing something?
Hey, I like a little chaos in my codebase 😆
const funsies = () => (Math.round(Math.random() * 1000) % 2 == 0) if ( condition || funsies() ) { // do the thing }Wait, why the the *1000 or mod 2? Won’t that give a 50\50 chance or the same as Math.round(Math.random).
No shade, and I may be wrong myself I am very tired
Probably to make the fractional random value between 0 and 1 to become an integer so that you can divisibility check for even with mod 2
is this AI?
Nope. I’m staunchly against “AI”. If the code sucks, it’s because I wrote bad code.
Edit: Oh, or did you mean is that how “AI” works?
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In Javascript,
Math.random()produces a float value between 0 and 1, so I multiply by 1000 and round it to get a larger integer. Thevalue %2 == 0is a non-library way of performingisEven()on the random integer (value % 2is 0 if even, 1 if odd, and the==0makes it return a boolean). When used in theifstatement, it’s essentially a coin flip.does javascript not allow you to interpret integers as booleans in a conditions directly? seems it’d be simpler to just do math.round(math.random()), which should still get you true (1) or false (0) in equal likelihood. or am i missing something?
It’ll give you 1 ~= true or 0 ~= undefined, but I typically use Typescript which prefers actual booleans to boolean-ish
huh. interesting. i wonder what number it’s actually storing for false then?