Skip to main content

node.js Local Environment Setup

Local Environment Setup

If you are still willing to set up your environment for Node.js, you need the following two softwares available on your computer, (a) Text Editor and (b) The Node.js binary installables.

Text Editor

This will be used to type your program. Examples of few editors include Windows Notepad, OS Edit command, Brief, Epsilon, EMACS, and vim or vi.
Name and version of text editor can vary on different operating systems. For example, Notepad will be used on Windows, and vim or vi can be used on windows as well as Linux or UNIX.
The files you create with your editor are called source files and contain program source code. The source files for Node.js programs are typically named with the extension ".js".
Before starting your programming, make sure you have one text editor in place and you have enough experience to write a computer program, save it in a file, and finally execute it.

The Node.js Runtime

The source code written in source file is simply javascript. The Node.js interpreter will be used to interpret and execute your javascript code.
Node.js distribution comes as a binary installable for SunOS , Linux, Mac OS X, and Windows operating systems with the 32-bit (386) and 64-bit (amd64) x86 processor architectures.
Following section guides you on how to install Node.js binary distribution on various OS.

Download Node.js archive

Download latest version of Node.js installable archive file from Node.js Downloads. At the time of writing this tutorial, following are the versions available on different OS.
OSArchive name
Windowsnode-v6.3.1-x64.msi
Linuxnode-v6.3.1-linux-x86.tar.gz
Macnode-v6.3.1-darwin-x86.tar.gz
SunOSnode-v6.3.1-sunos-x86.tar.gz

Installation on UNIX/Linux/Mac OS X, and SunOS

Based on your OS architecture, download and extract the archive node-v6.3.1-osname.tar.gz into /tmp, and then finally move extracted files into /usr/local/nodejs directory. For example:
$ cd /tmp
$ wget http://nodejs.org/dist/v6.3.1/node-v6.3.1-linux-x64.tar.gz
$ tar xvfz node-v6.3.1-linux-x64.tar.gz
$ mkdir -p /usr/local/nodejs
$ mv node-v6.3.1-linux-x64/* /usr/local/nodejs
Add /usr/local/nodejs/bin to the PATH environment variable.
OSOutput
Linuxexport PATH=$PATH:/usr/local/nodejs/bin
Macexport PATH=$PATH:/usr/local/nodejs/bin
FreeBSDexport PATH=$PATH:/usr/local/nodejs/bin

Installation on Windows

Use the MSI file and follow the prompts to install the Node.js. By default, the installer uses the Node.js distribution in C:\Program Files\nodejs. The installer should set the C:\Program Files\nodejs\bin directory in window's PATH environment variable. Restart any open command prompts for the change to take effect.

Verify installation: Executing a File

Create a js file named main.js on your machine (Windows or Linux) having the following code.
/* Hello, World! program in node.js */
console.log("Hello, World!")
Now execute main.js file using Node.js interpreter to see the result:
$ node main.js
If everything is fine with your installation, this should produce the following result:
Hello, World!

Comments

Post a Comment

Popular posts from this blog

Scenario : Cloud Computing

7 comments
Read more

ASP.NET Core - MVC Setup

Here we will set up the MVC framework in our FirstAppDemo application. We will proceed by building a web application on top of the ASP.NET Core, and more specifically, the ASP.NET Core MVC framework. We can technically build an entire application using only middleware, but ASP.NET Core MVC gives us the features that we can use to easily create HTML pages and HTTP-based APIs. To setup MVC framework in our empty project, follow these steps − Install the  Microsoft.AspNet.Mvc  package, which gives us access to the assemblies and classes provided by the framework. Once the package is installed, we need to register all of the services that ASP.NET MVC requires at runtime. We will do this inside the  ConfigureServices  method. Finally, we need to add middleware for ASP.NET MVC to receive requests. Essentially this piece of middleware takes an HTTP request and tries to direct that request to a C# class that we will write. Step 1  − Let us go to the NuGet package manager by ri
Post a Comment
Read more

SQL Server Tutorial - Date functions

1. Get month names with month numbers: In this query we will learn about  How to get all month names with month number in SQL Server . I have used this query to bind my dropdownlist with month name and month number. 1 2 3 4 5 6 7 8 9 10 11 12 ;WITH months(MonthNumber) AS (      SELECT 0      UNION ALL      SELECT MonthNumber+1      FROM months      WHERE MonthNumber < 12 ) SELECT DATENAME(MONTH,DATEADD(MONTH,-MonthNumber,GETDATE())) AS [MonthName],Datepart(MONTH,DATEADD(MONTH,-MonthNumber,GETDATE())) AS MonthNumber FROM months ORDER BY Datepart(MONTH,DATEADD(MONTH,-MonthNumber,GETDATE())) ; 2. Get name of current month: In this query we will learn about  How to get name of current month in SQL Server . 1 select DATENAME(MONTH, GETDATE()) AS CurrentMonth 3. Get name of day: In this query we will learn about  How to get name of day in SQL Server . 1 select DATENAME(WEEKDAY, GETDATE()) AS TodayI
Post a Comment
Read more