take console input in javascript code example

Example 1: javascript console input

//SpiderMonkey
var input = readline();
//Vanilla javascript
var input = prompt("Enter input:");

Example 2: get console javascript

//What you can do is hook the console.log function so that you store when it logs :
console.stdlog = console.log.bind(console);
console.logs = [];
console.log = function(){
    console.logs.push(Array.from(arguments));
    console.stdlog.apply(console, arguments);
}