Calculate the midpoint between two points

Average the x and y coordinates.

JavaScript Version 1.0.0 · MIT · .md

calculate-the-midpoint-between-two-points.js
function midpoint({ p1, p2 }) { return [(p1.x + p2.x) / 2, (p1.y + p2.y) / 2]; }

Input & expected output

Input

{
  "p1": {
    "x": 0,
    "y": 0
  },
  "p2": {
    "x": 4,
    "y": 6
  }
}

Expected output

[
  2,
  3
]

The edge case

Input

{
  "p1": {
    "x": -2,
    "y": 1
  },
  "p2": {
    "x": 2,
    "y": 1
  }
}

Expected output

[
  0,
  1
]

Know the limits

  • Returns [x, y] as in the original.

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.

Source & maintenance

Based on Calculate the midpoint between two points from the original 1loc collection by Nguyen Huu Phuoc. Copyright (c) 2020 phuoc-ng. MIT licensed.

Curated implementation; explicit input contract, edge case and limits. Original MDX retained as inert source evidence.

Maintained by Oveyon. Source commit: 14b481cf60df. Read the license.

Local fixture scope · Node.js 22.23.2 · reviewed October 28, 2026. No external service is required.

Keep exploring

Type two or more characters. Try “duplicate”, “webhook” or “retry”.