Geometry basics, distance between 2 points in 2d.js

// This series of katas will introduce you to basics of doing geometry with computers.

// Point objects have attributes x and y.

// Write a function calculating distance between Point a and Point b.

// Tests compare expected result and actual answer with tolerance of 1e-6.

function distanceBetweenPoints(a, b) {
  return Math.sqrt(((a.x -b.x)**2 + (a.y -b.y)**2))
}