node js home automation

This article describes how to create a web calculator using node. js + express. For more information, see Environment: HOST: WIN10 Express installation: 1. Install express-generator Enter the following command: npm install -g express-generator 2. Install express Enter the following command: npm install -g express 3. verify whether the installation is successful Enter the command: express-V View help: e

, multiple libraries can simplify our development work. For example: 1) node-restify Home: https://github.com/mcavage/node-restify Restify is a streamlined and similar to the Express library. It is used to build the Node. js library of RESTful APIs. Installation: $ npm inst

. Therefore, do not name the module with the same name as the built-in module. For example, obtain an http module. Copy codeThe Code is as follows:Var http = require ('http ') The returned http is the built-in module that implements the HTTP function Node. Ii. file loading Module Absolute path Copy codeThe Code is as follows:Var myMod = require ('/home/base/my_mod ')Or relative path Copy codeThe Code is as

function supports the third form of path, which is similar to foo/bar, and resolves the path according to the following rules until the module location is found. Built-in modules If the node. js built-in Module name is passed to the require function without path parsing, the export object of the internal module is directly returned, for example, require ('fs '). Node_modules directory NodeJS defines a spec

This article mainly introduces Node. for details about how to build a js barcode recognition program, refer to the following article. We will show you a very simple method to build a custom Node module, this module encapsulates the Dynamsoft Barcode Reader SDK and supports Windows, Linux, and OS X. At the same time, we will demonstrate how to integrate this modul

Node. js supports multi-user web Terminal Implementation and security solutions, and node. js supports multiple users As a common feature of local IDE, terminal (command line) supports git operations and file operations of projects. For WebIDE, without a web pseudo-terminal, only the encapsulated command line interface

website in the window environment: 1. Install node. js 2. Create a folder nodejs_express 3. Open cmd and go to nodejs_express. The Code is as follows: E: \ myapp \ nodejs_express 4. The project initializes npm init. After completing the configuration, a file is generated in the folder: Package. json 5. install Express: npm install express. After the installation is successful, a node_modules directory i

This article mainly introduces Node. callback and code design patterns in js asynchronous programming. Although long string parentheses during callback writing are not very nice in most cases, Node's asynchronous performance is indeed good, for more information, see the event mechanism and asynchronous IO, the biggest selling point of NodeJS, which is not transparent to developers. Developers need to write

Node. js entry-create a project and explain it in detail. node. js entry-level After thinking for a long time, I always want to write something that is helpful to everyone. Today I will explain how to generate a project. At present, the market generally requires a full stack of people ----- mean (mongo, express, angula

default logon username of Debian is admin rather than root or ec2: After logging on, switch the user to the root user. sudo -i 3) install Node. js and NPM Currently, the latest node. js and NPM versions need to be manually downloaded and installed locally. The installed node