rename file to hash name

hash_name.js

const fs = require('fs');
const cpryto = require('crypto');
const basePath=""
function rename(filename){
  var hashName =crypto.createHash('md5').update(filename).digest('hex');
  fs.rename(basePath+"/"+filename,basePath+"/"+hashName,(err,res)=>{
    if(err){
      console.log(err);
    }
    console.log(res);
  })
}