Function mapWithKey

The same concept as Array.mapWithIndex(), but for object values and keys.

Example

import * as P from "flurp/pojo";

const obj = { x: 10, y: 20 };
const multiplyByObjValue = P.mapWithKey<{ x: number; y: number }>((v, k) => v * obj[k]);
multiplyByObjValue({ x: 3, y: 4 });   // { x: 30, y: 80 }