nodejs获取文件字符编码

Question

如何找出给定文本文件的编码字符？

var inputFile = "filename.txt";
var file = fs.readFileSync(inputFile); 
var data = new Buffer(file, "ascii");
var fileEncoding = some_clever_function(file);
if (fileEncoding !== "utf8") {
    // do something
}

由于

Answer 1

您可以尝试使用外部模块，例如https://www.npmjs.com/package/detect-character-encoding

Answer 2

前面提到的模块也适用于我。或者，您可以查看我目前正在使用的 detect-file-encoding-and-language。

安装：

$ npm install detect-file-encoding-and-language

用法：

// index.js

const languageEncoding = require("detect-file-encoding-and-language");

const pathToFile = "/home/username/documents/my-text-file.txt"

languageEncoding(pathToFile).then(fileInfo => console.log(fileInfo));
// Possible result: { language: japanese, encoding: Shift-JIS, confidence: { language: 0.97, encoding: 1 } }