JSFiddle - React, Tailwind, and code Playground

JavaScript

Object.prototype.push = function( key, value ){
     this[ key ] = value;
     console.log( this );
     return this;
}
var obj = {'first':'hello', 'second':'hello'};

obj.push( 'third', {'inner1':'goodbye', 'inner2':'world'} )
   .push( 'fourth', 'again with the hello...' );