I done everything like say on nodejs.org tutorial for helloworld but I have a big problem. Please see the image below:
IMAGE: http://i.imgur.com/EjAMXcS.png
I save example.js file into D: directory ...
How to start node.js code:
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
}).listen(8080);
console.log('Server started');
You run node example.js from your command line (e.g. Windows Power Shell), not from inside the Node.js REPL.
From the command prompt navigate to D drive and then type node example.js to run your code.
When you use some package like morgan you need to install them before using them.Standard way of installing package is(again from command prompt) to navigate to your application folder and type npm install <package-name>. For further information look here:https://www.npmjs.org/doc/cli/npm-install.html
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Iam new to Node JS when i make any changes to the node file it is not updating in the server and also when i change the port number and kill the server and start it again it is not working
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('Hello');
}).listen(8080);
I have found a quick solution to fix this thing. You have to install a node module called as nodemon. This module helps to automatically restart your Server once you made the changes in Source code.
npm install -g nodemon
And nodemon will be installed globally to your system path.
You can also install nodemon as a development dependency:
npm install --save-dev nodemon
By default, node does not automatically restart when there are any changes in the file.
You might want to try the package nodemon, which can watch for file changes and auto restart the server.
You can try adding an host name to your listen function
let http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
I installed node.js new version and I checked in command prompt by using node-v and npm-v
I want to know how create and run that file.
Create the file hello.js in the root directory of your project, and fill it with the following code:
var http = require("http");
http.createServer(function(request, response) {
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("Hello World");
response.end();
}).listen(8888);
First, execute your script with Node.js in the command prompt:
node hello.js
open your browser and point it at http://localhost:8888/ . You will see a message "Hello World" .
You can start the Node.js process like this:
% node example.js
Server running at http://127.0.0.1:1337/
I have installed node.js from here http://nodejs.org/ . in my windows8 machine. copied the example server code in my server.js file
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
then opened the node.js prompt and written node c:/node/server.js
but nothing happens.
I am a php developer just trying hands on it, any guidelines will really be helpful.
You don't need to go in node.js prompt, you just need to use standard command promt and write
node c:/node/server.js
this also works:
node c:\node\server.js
and then in your browser:
http://localhost:1337
Nodejs is a scripting language (like Python or Ruby, and unlike PHP or C++). To run your code, you need to enter a command in the terminal / shell / command prompt. Look for an application shortcut in your operating system by one of those names.
The command to run in the terminal will be
node server.js
But you will first need to browse in the terminal to the same folder as the file server.js. The syntax for using the terminal varies by operating system, look for its documentation.
I open a text editor, in my case I used Atom. Paste this code
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
and save as
helloworld.js
in
c:\xampp\htdocs\myproject
directory.
Next I open node.js commamd prompt enter
cd c:\xampp\htdocs\myproject
next
node helloworld.js
next I open my chrome browser and I type
http://localhost:1337
and there it is.
Just go on that directory of your JS file from cmd and write node jsFile.js or even node jsFile; both will work fine.
Just try
node server
from cmd prompt in that directory
If you are in a Linux container, such as on a Chromebook, you will need to manually browse to your localhost's address. I am aware the newer Chrome OS versions no longer have this problem, but on my Chromebook, I still had to manually browse to the localhost's address for your code to work.
To browse to your locahost's address, type this in command line:
sudo ifconfig
and note the inet address under eth0.
Otherwise, as others have noted, simply type node.js filename and it will work as long as you point the browser to the proper address.
Hope this helps!
I have JUST downloaded node.js and am having to work with their command line for the first time. It appears that every tutorial on the planet gives the same starter app.
It uses the code...
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');
and wants me to save it to the file example.js.
The file can then be run by typing...
node example.js
but all the command line gives me is
...
The tutorials do not say WHERE I should save the file. To my C drive? To the same file as node.js? Anywhere?
I have tried all three and they don't seem to work. If there is any other solution, or simply something else I should be looking into and asking about, that help would be appreciated too. But at this point I honestly have no idea what the problem is, and there appears to be very few resources to help me here.
When you run node example.js from your prompt, it's assuming that example.js is in the current working directory.
To change your current working directory, use the change directory (cd) command:
cd C:\Projects\MyProject
node example.js
This is equivalent to
node C:\Projects\MyProject\example.js
Correct! you can save it any where and change to that directory by the (cd) command on node.js command prompt which will then give message says: "Server running at: 127.0.0.1:8124.
So point your browser to that address and you see your file.
I am new to node.js. I followed the download and installation instruction from Here.
Problem is now when I try this in my terminal
node
I get following message
No script was specified.
Usage: node [options] script.js [arguments]
Options:
-v, --version print node's version
--debug[=port] enable remote debugging via given TCP port
without stopping the execution
--debug-brk[=port] as above, but break in script.js and
wait for remote debugger to connect
--v8-options print v8 command line options
--vars print various compiled-in variables
Enviromental variables:
NODE_PATH ':'-separated list of directories
prefixed to the module search path,
require.paths.
NODE_DEBUG Print additional debugging output.
Documentation can be found at http://nodejs.org/api.html or with 'man node'
After that I tried this example :
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(8124, "127.0.0.1");
console.log('Server running at http://127.0.0.1:8124/');
It says : ReferenceError: console is not defined.
I googled this and found that i havent installed nodejs properly so I installed it again but no success :(
Please help !!
The version in the installation manual is too old.
Do this
wget http://nodejs.org/dist/node-v0.4.6.tar.gz
gunzip node-v0.4.6.tar.gz
tar -xf node-v0.4.6.tar
cd node
./configure
make
sudo make install
BTW, here are official installation instructions: https://github.com/joyent/node/wiki/Installation