promise in node js

Node. js static file server ultimate version, node. js static ultimate version First, I would like to thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex and can learn a lot of new things. The Code contains a fs. stat function and the pipe fun

This article describes how to get the Buffer object byte length from the Node. js practical code segment. For more information, see what we know under the Node. js framework. Buffer objectIt can provide good support for binary data, so it is necessary to obtain the actual length of bytes of a Buffer object. The

This article mainly introduces Node in Linux. the method for configuring MySQL or Oracle databases in js programs. By default, the Node environment has been assembled and we can use the npm package management tool for configuration. For more information, see Mysql usageInstall the mysql module: Run the command in the cmd command line of the installation root dire

This article mainly discusses and verifies whether forEach () in node. js is synchronous or asynchronous, and shares ideas and methods with you. if you need it, you can refer to it. Almost all callback functions in node are asynchronous. the code behind the callback function may be executed before the code in the callback function is executed, especially for data

1. What is node. jsnode. JS is a back-end JavaScript runtime environment (supported systems include *nux, Windows), which means you can write system-level or server-side JavaScript code.node. js is lightweight and efficient with event-driven, non-blocking I/O models, making it ideal for running data-intensive real-time applications on distributed devices.Two exam

This article mainly introduces the information shared by LDAP query instances under node. js. For more information, see: Obtain uid = kxh user data from an LDAP Server LDAP address: ldap: // 10.233.21.116: 389 In the project root directory, first npm an LDAP access library ldpajs Npm install ldapjs In the project root directory, create an app. js Var ldap = req

Node. js crawls Douban data and node. js crawls Douban data. I have always thought that my vue is okay, and I have always thought that my webpack is okay. Today, when I visited node in MOOC, I found that I am still far away. As we all know, vue-cli is based on webpack, while

This article describes how to use npm to publish a Node. JS package tutorial. This article describes how to configure a package. json, register an npm account, publish a package, etc. For more information, see if npm is a Node. JS package manager. During Node.

The console. trace Method in node. js is used in node. js scenarios. Method description: Outputs the current call stack to the standard error stream. Syntax: Copy codeThe Code is as follows:Console. trace (label) Receiving parameters: Label Example: Copy codeThe Code is as follows:Console. trace ();// Running result:Tr

This article mainly introduces how to use Node. js to implement content sharding in HTTP206. Node. js is a JavaScript framework for servers. For more information, see Introduction In this article, I will describe the basic concept of HTTP status 206, and use Node.

This article describes how to quickly master Node. the use of setTimeout and setInterval in js. If you are interested, refer to Node. js and js also have timers, time-out timers, interval timers, timely timers, and processes. nextTick (callback) function to implement event s

This article describes how to use node + vue. js to implement SPA applications. For more information, see Business Requirements Recently, the company asked to develop a web version of the app. Because the app is content-oriented and has a chat module, it is not suitable for multi-page development, and it is mainly for mobile browsing, it is harsh for loading speed or user experience. After researching a lo

This article mainly introduces the use of Node. js is used to handle the encoding of front-end code files. It is easy to handle Encoding Problems in related class libraries of Node. If you need a friend, you can refer to how to use NodeJS to compile front-end tools, the most common operations are text files. Therefore, file encoding is involved. The commonly used

This article mainly introduces the method and code for starting the script file of node. js at startup. here, I will share it with you. if you need it, refer to it. The code is as follows: #! /Bin/bash### BEGIN INIT INFO# Provides: xiyoulib# Required-Start: $ all# Required-Stop: $ all# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description: Start daemon at boot time# Description: Enable service pr

This article mainly introduces Node. for details about js file operations, this article describes how to process file paths and how to use and introduce the fs module in detail. For details, refer to a set of data flow APIs on Node, it is convenient to process files like network streams, but it only allows sequential processing of files and does not allow random

This article mainly introduces Node. methods for securely calling system commands in js (to avoid injection security vulnerabilities). This article describes the security issues that may occur when connecting strings, for more information about how to use Node, see this article. js calls system commands to avoid common

Node. js loop traps and node. js loop traps The asynchronous mechanism of Node. js is implemented by events and callback functions. It may feel like a violation of the Conventions at the beginning, but it will be very easy to get

Detailed explanation of Node. JS file system parsing instances, node. js instances 1. Node. js File System Var fs = require ("fs ") 2. asynchronous and synchronous Functions that read file content include asynchronous fs. read

Node. js and C can traverse the largest file in the folder and output the path, size, and node. js path. Node. js Traverse the maximum file in the folder and output the path, size Implementation Code: /* Traverse the maximum file

Detailed Description: use Node. js to write a simple command line tool, node. js command line This article describes how to use Node. js to write a simple command line tool: The operating system must be Linux 1. Objectives Ente