How to include install any library in node js application program

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Being early stage learner of Node.js I want to know how to include/install libraries in Node.js using Both ES5 and ES6.
Jul 26, 2019 in Others by code_ninja
• 6,290 points
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1 answer to this question.

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Node.js is server side runtime environment that lets us use JavaScript for development of backend applications

  • Module is the only way to install any library in Node.js application
  • Basically module in Node.js is a functionality which is organised in a single or multiple JavaScript file and can be reused throughout the Node.js application
  • There are 3 categories of modules:
  1. Core modules: They are in-built and you can use them without any installation
  2. User defined modules: They are created by you and you can reuse them in rest of your application
  3. Node Package Manager: These include a group of Modules or packages, developed by other developers, which can be used in your application by installing them
  • We usually include/install a library(module) using following syntax:
  1.  ES5: var module = require('module_name')
  2.  ES6: import {module} from ‘module_name’
  • The require() function mentioned here returns an object, function, property or any other JavaScript type, depending on what is mentioned in module

I hope this clears your doubt:)

answered Jul 26, 2019 by ArchanaNagur
• 2,340 points

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