Calculate the midpoint of a given range

Average the two ends of a [from, to] range.

JavaScript Version 1.0.0 · MIT · .md

function rangeMidpoint([from, to]) { return (from + to) / 2; }

Input & expected output

[
  10,
  20
]

15

The edge case

[
  -5,
  5
]

0

Know the limits

• The order of the ends does not matter.

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.