this picture showing notes.js on left side and index. js on right side....how to import and export my note.js

here iam adding codes of 2 files. first one is notes.js and second one id index.js.. i dont know how to import export in newer version of node.js.here iam adding codes of 2 files. first one is notes.js and second one id index.js.. i dont know how to import export in newer version of node.js.here iam adding codes of 2 files. first one is notes.js and second one id index.js.. i dont know how to import export in newer version of node.js.here iam adding codes of 2 files. first one is notes.js and second one id index.js.. i dont know how to import export in newer version of node.jshere iam adding codes of 2 files. first one is notes.js and second one id index.js.. i dont know how to import export in newer version of node.js

//this is my nottes.js :
import fs from 'fs';

const getNotes = function(){
    return 'yours notes....'
}

const addNote = function(title,body){
    const note = loadNotes()

}

const loadNotes = function(){

    const dataBuffer = fs.readFileSync('note.json')
    const dataJson = dataBuffer.toString()
    return JSON.parse(dataJson)

}
module.exports={
    addNote:addNote,
    getNotes:getNotes
}


//this is my index.js:
import yargs from 'yargs';
import notes from './notes.js'
//const notes = require('./notes');
import {hideBin} from 'yargs/helpers';

const argv = yargs(process.argv.slice(2));
yargs(hideBin(process.argv)).command({
    command:'add',
    describe:'add a new note',
    builder:{
        title:{
            describe:"note title",
            demandOption :true,
            type:'string'
        },
        body:{
            describe:"note body",
            demandOption :true,
            type:'string'

        },
        tile:{
            describe:"note tile",
            demandOption :true,
            type:'string'

        }

    },
    handler:function(argv){
        notes.addNote(argv.title,argv.body)
    },
})

yargs(hideBin(process.argv)).command({
    command:'remove',
    describe:'removing a new note',
    handler:function(){
        console.log('removing a new note!')
    }

}).parse()

//console.log(argv.argv);
argv.parse()