Audience this tutorial is designed for software programmers who want to learn the basics of node.js and its architectural concepts The fs module in node.js provides synchronous as well as asynchronous methods for file handling This tutorial will give you enough understanding on all the necessary components of node.js with suitable examples.
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A node.js application using expressjs is ideally suited for building rest apis
In this chapter, we shall explain what is a rest (also called restful) api, and build a node.js based, express.js rest application
We shall also use rest clients to test out rest api. This tutorial will give you enough understanding on all the necessary components of express.js with suitable examples Considering nodejs as base environement, before going deep into expressjs you should familiar with fundamentals of nodejs like environment setup, repl terminal, npm, callbacks, events, objects, etc. Node.js was developed by ryan dahl in 2009 and its latest version is v0.10.36
The definition of node.js as supplied by its official documentation is as follows ? Electron accomplishes this by combining chromium and node.js into a single runtime and apps can be packaged for mac, windows, and linux. Server applications − node js is built on chrome's javascript runtime for building fast and scalable network applications This is an event based library which helps in developing very sophisticated server applications including web servers
Machine learning − developers can use the ml5.js library to complete the task related to machine.
Creating node.js application to create a hello, world! web application using node.js, you need the following three important components − import required modules − we use the require directive to load node.js modules Read request and return response − the server created in an earlier step. The node.js api includes fs module that enables the developer to perform read/write operations on disk files
