JSFiddle - React, Tailwind, and code Playground

by kpripper

JavaScript

console.log({A : 1, B : 2, C : 3, D : 4});
console.log(swap({A : 1, B : 2, C : 3, D : 4}));

function swap(json){
  var ret = {};
  for(var y in json){
    ret[json[y]] = y;
  }
  return ret;
}