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How to install Node Js on Windows

Introduction:

Node.js is a cross-platform environment and library for running JavaScript applications which is used to create networking and server-side applications.

Steps:

To install and setup an environment for Node.js, you need the following two software’s available on your computer:

  1. Text Editor (Notepad or Notepad++)
  2. Node.js Binary installable

Download Node.js:

You can download the latest version of Node.js installable archive file from https://nodejs.org/en/

NodeJsPage

After downloading the Node.js install it in your machine.

Node.js Console:

            The Node.js console module provides a simple debugging console similar to JavaScript console mechanism provided by web browsers.

There are three console methods that are used to write any node.js stream:

  1. console.log()
  2. console.error()
  3. console.warn()

Basic Commands used in Command prompt:

1.       CD(Change Directory): To change the directory. (cd path name – to generate directory and cd\ - is to clear the directory).

2.       node [file name].js: To debug or to execute the program.

3.       npm –v,--version: It is used to print node's version.

4.       npm –h,--help: It is used to print node command line options.

5.       npm -e, --eval: It evaluates the following argument as JavaScript. The modules which are predefined in the REPL can also be used in script.

6.       npm -p, --print: It is identical to -e but prints the result.

7.       npm  -c, --check: Syntax check the script without executing.

8.       npm -r, --require: It is used to preload the specified module at startup. It follows require()'s module resolution rules. Module may be either a path to a file, or a node module name.

9.       npm install [module name]: To install the required modules.

10.   Ctrl+C : Exit from debugging. 


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Madhavi Seethi
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