在node.js中复制文件的最快方法 [英] Fastest way to copy file in node.js

问题描述

我正在工作的项目（node.js）意味着文件系统的许多操作（复制/读/写等）。我想知道，哪种方法最快，我很乐意提供一些建议。

Project that I am working at (node.js) implies a lot of operations with file system (copying/reading/writing etc). I'd like to know, what methods are the fastest, and I'd be happy for some advice.

推荐答案

这是使用流在一行代码中复制文件的好方法：

This is a good way to copy a file in one line of code using streams:

var fs = require('fs');

fs.createReadStream('test.log').pipe(fs.createWriteStream('newLog.log'));

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');
});

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