1-Nodejs介绍与安装

1-Nodejs介绍与安装

Nodejs 介绍

在以往的认知中,JavaScript 通常嵌入在HTML中,由浏览器解析引擎解析执行,主要用于网页开发等web应用。Nodejs 是一个允许JavaScript运行在服务器端的平台,这意味着你可以在Node.js环境中脱离浏览器,直接运行JavaScript代码,无需通过浏览器。Node.js提供了许多内置模块,如fs(文件系统)、http(HTTP模块)等,允许开发者进行文件操作、网络编程等。

官网介绍如下:
在这里插入图片描述

Nodejs 安装

① 进入 Nodejs官网
https://nodejs.org/en

② 选择 LTS 稳定版本

③ 选择对应系统版本进行下载

④ 安装Nodejs
如下:我装在D盘

查看已安装 Nodejs 版本

打开 cmd 命令窗口,执行如下命令

node -v


以上则表示 nodejs 安装成功!

Error: Package: 2:nodejs-20.19.6-1nodesource.x86_64 (nodesource-nodejs) Requires: libstdc++.so.6(GLIBCXX_3.4.21)(64bit) Error: Package: 2:nodejs-20.19.6-1nodesource.x86_64 (nodesource-nodejs) Requires: glibc >= 2.28 Installed: glibc-2.17-326.el7_9.3.x86_64 (@updates) glibc = 2.17-326.el7_9.3 Available: glibc-2.17-317.el7.i686 (base) glibc = 2.17-317.el7 Available: glibc-2.17-322.el7_9.i686 (updates) glibc = 2.17-322.el7_9 Available: glibc-2.17-323.el7_9.i686 (updates) glibc = 2.17-323.el7_9 Available: glibc-2.17-324.el7_9.i686 (updates) glibc = 2.17-324.el7_9 Available: glibc-2.17-325.el7_9.i686 (updates) glibc = 2.17-325.el7_9 Available: glibc-2.17-326.el7_9.i686 (updates) glibc = 2.17-326.el7_9 Error: Package: 1:npm-8.19.4-1.16.20.2.1.el7.x86_64 (epel) Requires: nodejs = 1:16.20.2-1.el7 Available: 1:nodejs-16.20.2-1.el7.x86_64 (epel) nodejs = 1:16.20.2-1.el7 Available: 2:nodejs-20.0.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.0.0-1nodesource Available: 2:nodejs-20.1.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.1.0-1nodesource Available: 2:nodejs-20.2.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.2.0-1nodesource Available: 2:nodejs-20.3.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.3.1-1nodesource Available: 2:nodejs-20.4.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.4.0-1nodesource Available: 2:nodejs-20.5.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.5.0-1nodesource Available: 2:nodejs-20.5.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.5.1-1nodesource Available: 2:nodejs-20.6.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.6.0-1nodesource Available: 2:nodejs-20.6.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.6.1-1nodesource Available: 2:nodejs-20.7.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.7.0-1nodesource Available: 2:nodejs-20.8.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.8.0-1nodesource Available: 2:nodejs-20.8.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.8.1-1nodesource Available: 2:nodejs-20.9.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.9.0-1nodesource Available: 2:nodejs-20.10.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.10.0-1nodesource Available: 2:nodejs-20.11.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.11.0-1nodesource Available: 2:nodejs-20.11.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.11.1-1nodesource Available: 2:nodejs-20.12.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.12.0-1nodesource Available: 2:nodejs-20.12.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.12.1-1nodesource Available: 2:nodejs-20.12.2-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.12.2-1nodesource Available: 2:nodejs-20.13.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.13.0-1nodesource Available: 2:nodejs-20.13.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.13.1-1nodesource Available: 2:nodejs-20.14.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.14.0-1nodesource Available: 2:nodejs-20.15.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.15.0-1nodesource Available: 2:nodejs-20.15.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.15.1-1nodesource Available: 2:nodejs-20.16.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.16.0-1nodesource Available: 2:nodejs-20.17.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.17.0-1nodesource Available: 2:nodejs-20.18.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.18.0-1nodesource Available: 2:nodejs-20.18.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.18.1-1nodesource Available: 2:nodejs-20.18.2-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.18.2-1nodesource Available: 2:nodejs-20.18.3-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.18.3-1nodesource Available: 2:nodejs-20.19.0-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.0-1nodesource Available: 2:nodejs-20.19.1-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.1-1nodesource Available: 2:nodejs-20.19.2-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.2-1nodesource Available: 2:nodejs-20.19.3-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.3-1nodesource Available: 2:nodejs-20.19.4-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.4-1nodesource Available: 2:nodejs-20.19.5-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.5-1nodesource Installing: 2:nodejs-20.19.6-1nodesource.x86_64 (nodesource-nodejs) nodejs = 2:20.19.6-1nodesource Error: Package: 2:nodejs-20.19.6-1nodesource.x86_64 (nodesource-nodejs) Requires: libstdc++.so.6(GLIBCXX_3.4.20)(64bit) Error: Package: 2:nodejs-20.19.6-1nodesource.x86_64 (nodesource-nodejs) Requires: libstdc++.so.6(CXXABI_1.3.9)(64bit) You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest
12-17
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