JSFiddle - React, Tailwind, and code Playground

JavaScript

function a(){
     console.log("function_global");   
}
var b = 'variable_global';

var ob = new Object();
ob.a = function(){
    console.log("function_object");
}
ob.b = 'variable_object';

with(ob){
    var a = function(){
        console.log("function_local");
    }
    var  b = 'variable_local';
    a();
    console.log(b);
}