akshaygulhane

const regex1 = new RegExp("0*[01]1*");
const regex2 = new RegExp("([00]|[01]|[10]|[11])*[01]([00]|[01]|[10]|[11])*");
const regex3 = new RegExp("(00|01|10|11)*0|1(00|01|10|11)*");
const regex4 = new RegExp("(00|01|10|11)*(0|1)(00|01|10|11)*");

console.log("111".match(regex1));
console.log("111".match(regex2));
console.log("111".match(regex3));
console.log("111".match(regex4));

akshaygulhane

const express = require('express');
const RateLimit = require('express-rate-limit');

const limiter = new RateLimit({
    windowMs: 15 * 60 * 1000, // 15 minutes
    max: 100, // limit each IP to 100 requests per windowMs
    delayMs: 0 // disable delaying - full speed until the max limit is reached
});

app.use(limiter);

akshaygulhane

const express = require('express');

var expressSanitizer = require('express-sanitizer');
var bodyParser = require('body-parser');

const app = express();
const router = express.Router();
const PORT = process.env.PORT || 3001; 

app.use(bodyParser.json());