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node.js - Install express js with npm - Stack Overflow
When to update latest in npm? (express-inspired)
Won't doing npm install express in every project just keep taking up space?
Why are you still using express?
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For install Express in ubuntu via npm (Follow following steps)
First open terminal by 'ctrl + alt + t'
- Check nodejs is installed or not by command :- node -v
- Inter following path into terminal :- cd /var/www/html
- Create new folder (manually) or by command line :- mkdir nodeTest
- Enter in "nodeTest" folder :- cd nodeTest
- Create 'package.json' :- npm init //initialize node project (nodeTest)
- install Express :- sudo npm install express --save
Now open the 'nodeTest' folder from following path in your system :- /var/www/html/nodeTest
Now create :- index.js
index.js
var express = required("express");
var app = express();
app.get("/", function (req, res) {
res.send(" Welcome Node js ");
});
app.listen(8000, function () {
console.log("Node server is runing on port 8000...");
});
Runnig node server by terminal command :- node index.js
Now check url :- "localhost:8000"
As I said in my comment, ExpressJS it's a framework for developing servers. It's not a server by itself.
You should create a npm project (with npm init) and you can install it as a dependency with npm install express --save. Then refer to the "Hello World" example to see how to create a simple server: Hello World Starter
var express = require('express');
var app = express();
app.get('/', function (req, res) {
res.send('Hello World!');
});
app.listen(3000, function () {
console.log('Example app listening on port 3000!');
});
Also, you may want to serve static files by using
app.use(express.static('name_of_the_directory'));
» npm install express-session
Is there any community consensus on when to update npm's latest vs next, and how such things are announced?
Background: I noticed that Express 5 has been officially out for 4 months but npm still lists Express 4 as "latest". I dug into posts here (nothing except that it was noticed on release. See: https://www.reddit.com/r/node/comments/1fdbm2i/comment/lmerznp/) and issues on their github (where it's clear the delay is intentional, wanting enough support documentation, though likely longer than they wanted. see: https://github.com/expressjs/express/issues/5944#issuecomment-2498156111).
Now, jokes and memes aside, I fully approve of the express 5 approach.
But it does raise the question: Is there any normal/conventional approach or best practice? I've generally seen simultaneous "announce" and "update". Heck, with a few libs I find the "announce" only after I installed something new and saw the version change (but I now teaching, so I'm running new installs almost daily).
Similarly, With all the Express 5 announcements "done", would there be another announcement when "latest" changes?
» npm install express-validator