Calculate the distance between two points

Apply the Pythagorean theorem with Math.hypot.

JavaScript Version 1.0.0 · MIT · .md

function distance({ p1, p2 }) { return Math.hypot(p2.x - p1.x, p2.y - p1.y); }

Input & expected output

{
  "p1": {
    "x": 0,
    "y": 0
  },
  "p2": {
    "x": 3,
    "y": 4
  }
}

5

The edge case

{
  "p1": {
    "x": 1,
    "y": 1
  },
  "p2": {
    "x": 1,
    "y": 1
  }
}

0

Know the limits

• Math.hypot avoids overflow in intermediate squares that Math.sqrt(dx² + dy²) can hit.

The function above is the implementation used by the lab. The lab validates JSON types and caps size before execution; include equivalent validation when accepting untrusted input in your application.

Keep exploring

• Convert degrees to radians — Multiply by π and divide by 180.
• Check if a rectangle contains another one — Compare corners: a contains b when b’s corners sit inside or on a’s edges.
• Check if a rectangle overlaps another one — Two rectangles overlap when they overlap on both axes.