How to write a function to shorten a URL using JavaScript?

Answer 1

You need server script eg. PHP for url redirection.

Answer 2

Front-end JavaScript cannot run from server side, it run from device browsers. Unless you refer to Node.js.

Answer 3

Assume you use Nodejs with Express and MongoDb database with modal UrlShorten.

The part to shortening url could be:

const mongoose = require("mongoose");
const UrlShorten = mongoose.model("UrlShorten");
module.exports = app => {
//GET API for redirecting to Original URL
app.get("/api/item/:code", async (req, res) => {

});
//POST API for creating short url from Original URL
app.post("/api/item", async (req, res) => { });
};

More detail information please visit https://codeburst.io/creating-custom-url-shortener-with-nodejs-de10bbbb89c7

Answer 4

JavaScript function need

Answer 5

Javascript cannot perform server function.

Answer 6

but JavaScript can use for server side also

Answer 7

assume refer to Nodejs then what about function