javascript - 在node.js中复制文件的最快方法(Fastest way to copy file in node.js)

Question

Project that I am working on (node.js) implies lots of operations with the file system (copying/reading/writing etc).(我正在处理的项目（node.js）暗示了文件系统的许多操作（复制/读取/写入等）。)

I'd like to know which methods are the fastest, and I'd be happy to get an advice.(我想知道哪些方法是最快的，我很乐意得到建议。) Thanks.(谢谢。)   ask by bonbonez translate from so

Answer 1

This is a good way to copy a file in one line of code using streams:(这是使用流在一行代码中复制文件的好方法：)

var fs = require('fs'); fs.createReadStream('test.log').pipe(fs.createWriteStream('newLog.log')); In node v8.5.0, copyFile was added(在节点v8.5.0中，添加了copyFile) const fs = require('fs'); // destination.txt will be created or overwritten by default. fs.copyFile('source.txt', 'destination.txt', (err) => { if (err) throw err; console.log('source.txt was copied to destination.txt'); });