JSFiddle - React, Tailwind, and code Playground

JavaScript

var w = function(text) { document.body.innerHTML += text; };

var primary = {"gonna":3,"lol":114,"wouldn":2,"know":6,"lowkey":2,"man":5};
var secondary = JSON.parse(JSON.stringify(primary));

w(primary.toSource());
w("<br/>");

delete secondary['lol'];

w(primary.toSource());
w("<br/>");
w(secondary.toSource());