RunKit + npm: deep-object-diff

var deepObjectDiff = require("deep-object-diff") console.log(deepObjectDiff.diff({ property: true }, undefined)) console.log(deepObjectDiff.diff({ property: true }, null)) console.log(deepObjectDiff.diff({ property: true }, 'test')) console.log(deepObjectDiff.diff(undefined, undefined)) console.log(deepObjectDiff.diff({ property: true }, 123))