filtermap
adds .filterMap to ur array prototype even tho u shouldnt /shrug
to test npm install npm run test
[1,2,3,4].filterMap(callback, conditional, leading)
leading decides if the conditional should run before or after the callback true by default
ex:
import 'filtermap'
let x = [1,2,3].filterMap((item) => item * 10, (item) => item >= 2)
console.log(x)
// [4, 6]
let y = [1,2,3].filterMap((item) => item * 10, (item) => item >= 20, false)
console.log(y)
// [20, 30]