map-invert

Invert Maps. Keys become values and values become keys

Usage no npm install needed!

<script type="module">
  import mapInvert from 'https://cdn.skypack.dev/map-invert';
</script>

README

map-invert

Invert Maps. Keys become values and values become keys. Returns a new Map.

import mapInvert from "map-invert";

const myMap = new Map([
  [1, "foo"],
  [2, "bar"],
  [3, "baz"],
]);

const inverted = mapInvert(myMap);

inverted.get("baz");
// => 3