How can I run a node.js project on the browser?

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Here is my code:

var url = "http://quotes.toscrape.com/";

var express = require('express');
var request = require('request');

request(url, function (error, response, body) {
    console.log('error:', error); // Print the error if one occurred
    console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
    var re = new RegExp('<title>(.*)</title>');
    var r  = body.match(re);
    if (r)
        console.log(r[1]);
});

When I execute this command: node index.js I will see the result (the title of that website) in the command line environment as well. But I want to see the result in the browser. How can I do that?

Noted that months ago, I was working on a react project and If I recall correctly I was able to see the result on the browser (localhost:3000) by executing npm start. But I don't know why it doesn't happen for this project.

You can use an express server to send the response to browser.

var url = "http://quotes.toscrape.com/";

var express = require('express');
var request = require('request');
var app = express();

app.get('/your-route', function(req, res) {
    request(url, function (error, response, body) {
        console.log('error:', error); // Print the error if one occurred
        console.log('statusCode:', response && response.statusCode); // Print the response status code if a response was received
        var re = new RegExp('<title>(.*)</title>');
        var r  = body.match(re);
        if (r) {
            res.write(r[1]);
            res.end();
        }
    });
})

app.listen(3000);

How to Run Node.js in a Browser [Tutorial], But this demo is too old to run the latest version of webpack. I am wondering if we can do a browser environment to simulate running Node.js. I am wondering if we can do a browser environment to simulate running Node.js. Node.js and Chrome is both v8, and many of the Node.js lib code can be executed in Chrome. In addition, I found some cool libraries, such as BrowserFS, memfs, rollup-plugin-node-builtins, etc. These libraries can help us build this environment.

You can using socket.io.

If you want browser run console.log(r[1]);, you use socket.emit('log', r[1]);. In browser (in javascript of your html file):

socket.on('log', ...data=>{
    console.log(...data);
});

But you should read https://socket.io/ to config and understand it.

How can I run a node.js project on the browser?, You can use an express server to send the response to browser. var url = "http://​quotes.toscrape.com/"; var express = require('express'); var  In this guide, you learned a few basic things about what you can do with Node.js, tried using the Node.js command line in VS Code, created a simple web app with Express.js and ran it locally in your web browser, and then tried using a few of the built-in Node.js modules.

Here is an example of creating an app with express

const express = require('express') 
const app = express() 

app.get('/', function (req, res) { 
res.send('Hello World!') 
}) 

app.listen(3000, function () { 
console.log('Example app listening on port 3000!') 
})

Also request is only usefull for making http calls, not creating any kind of server

Using and Running Node.js Modules in The Browser, How about when you need to build a client side JavaScript application? The Node.js runtime doesn't exist on the client, you have only the  will run your jasmine tests for you, and they will be run by Travis-CI for each commit, which is what you really want. This setup only tests your code in a Node.js context. Now you need to test in a browser context too. Actually, you need two types of browser test.

To access anything from the browser you need to create an express app and call listen() on it.

const express = require('express')

const app = express();

app.get('/', function (request, response) {
  // Process request and form a response
  response.send(/*response*/);
});

app.listen(3000, () => console.log('Listening on port 3000');

(Express) development environment - MDN, NPM can also be used to (globally) install the Express Application "pure node" server that simply prints out "Hello World" in the browser when  Node.js makes it possible for you to run JavaScript programs outside of a web browser or on a server. To run a Node.js application on Windows, follow these three steps. Locate Command Prompt by entering cmd into the search bar. Click cmd in the search results to open the Command Prompt.

How to Run a Node.js Application on Windows, Node.js makes it possible for you to run JavaScript programs outside of a web browser or on a server. To run a Node.js application on Windows, follow these three steps. Locate Command Prompt by entering cmd into the search bar. Click cmd  Sustainable Node.js development with only a browser. Nowadays, there are many collaborative platforms for showcasing JS code snippets and frameworks. Most of them run in your browser, some even manage to magically run Node.js applications in the cloud. They abstract away many possibilities in order to focus on prototyping and learning.

How to run node js script on the browser · Issue #69 · nodejs/help , GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Type Ctrl + Q to open the search box, type Node.js, then choose Create new Blank Node.js Web application project (JavaScript). In the dialog box that appears, choose Create. From the top menu bar, choose File > New > Project. In the left pane of the New Project dialog box, expand JavaScript, then choose Node.js.

How to Start a Node Server: Examples with the Most Popular , Now, when you restart the server and visit the app in the browser, you will see that In a fresh project, install the module with the command npm install server --​save . Another scenario arises when you have a running Node.js server that you  Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine. run your web server using node app.js. Node.js Project Licensing Information.

Comments
  • You required express in your code, have you tried using it?
  • @Luca Nope .. actually my code works well even when I remove this var express = require('express'); line.
  • You need to create an app with express then listen to a port
  • can you please give me an example for /your-route ?
  • anyway, your code returns Cannot GET / in the browser
  • You can replace /your-route with the name of your route. In your case, you can replace /your-route with / and then try to access it from the browser by typing localhost:3000/.