怎么利用Node.js查看操作系统及其版本号

10.0.18363

 Version                                    major.minor   
------------------------------------------ ------------- 
 Windows 10, Windows Server 2016            10.0
 Windows 8.1, Windows Server 2012 R2        6.3
 Windows 8, Windows Server 2012             6.2
 Windows 7, Windows Server 2008 R2          6.1
 Windows Vista, Windows Server 2008         6.0
 Windows XP Professional x64 Edition,       5.2
 Windows Server 2003, Windows Home Server
 Windows XP                                 5.1
 Windows 2000                               5.0

const os = require('os')
const semver = require('semver')
const platform = os.platform()
const isWindows = platform === 'win32'
const release = os.release()
const isWin7 = isWindows && release.startsWith('6.1')
const win7orOlder = isWindows && semver.lte('6.1')

$ sw_vers
ProductName:	macOS
ProductVersion:	11.4
BuildVersion:	20F71

$ sw_vers -productVersion
11.4

const { execSync } = require('child_process')
const macVersion = execSync('sw_vers -productVersion', { encoding: 'utf-8' })