Calculate the euclidean distance using TypeScript. Supports N dimensions.

euclidean-distance.ts

const calculateDistance = (p: number[], q: number[]) => {
  if (p.length != q.length) return -1;
  const subtracted = q.map((i, n) => i - p[n]);
  const powered = subtracted.map(e => Math.pow(e, 2));
  const sum = powered.reduce((total, current) => total + current, 0)
  return Math.sqrt(sum);
}

// Three dimension
const p = [2.15, 16.5, 5.6];
const q = [5.3, 1.2, 10.5];
console.log(calculateDistance(p, q)); // 16.371392732446438

// Six dimension
const p2 = [2.15, 16.5, 5.6, 18.9, 11.4, 9.1];
const q2 = [5.3, 1.2, 10.5, 18.9, 0, 10];
console.log(calculateDistance(p2, q2)); // 19.969789683419304