Nodejs read file Chinese garbled utf8 to gbk solution

First install the iconv-lite module
npm install iconv-lite

// Load the File System read and write module 
var fs = require('fs'); 
// Load the encoding conversion module 
var iconv = require('iconv-lite');  
var file = "F:\\nodeJS\\app\\file\\input.txt"; 
readFile(file);
function readFile(file){ 
    fs.readFile(file, function(err, data){ 
        if(err) 
            console.log ("Read file fail " + err); 
        else{ 
            // When read successfully 
            // output byte array 
            //console.log(data); 
            // Convert array to gbk Chinese 
            var texts = iconv.decode(data , 'gbk'); 
            console.log(texts); 
        } 
    });   
} 
-------------------------------Key question
// Convert the array to gbk Chinese
iconv.decode(data, 'gbk ');