n-dimension distance

n-distance.js

// not really about performance
// but fun to make it one line
// this discussion looked interesting re estimating
// https://stackoverflow.com/questions/3693514/very-fast-3d-distance-check

const distance = (a, b) => Math.sqrt(a.reduce((total, _, i) => total + Math.pow(b[i] - a[i], 2), 0))

const _2d_ = distance([1, 2], [0, 4])
const _3d_ = distance([1, 2, 3], [0, 4, 5])