files.js

const fs = require('fs');


// reading files
fs.readFile('./docs/blog1.txt', (err, data) => {
    if(err){
        console.log(err);
    }
    console.log(data.toString());

})

console.log('last line'); //it will be printed before hello fifi is done,because that was asyncronous code and it doesnt block other code from executing

//writting files

fs.writeFile('./docs/blog2.txt', 'hello , now',() => {
    
    console.log('file was written');
    

});


//directories
if(!fs.existsSync('./assets')){
    fs.mkdir('./assets', (err) => {
        if(err){
            console.log(err);
        }
        console.log('folder created');
    })
} else{
    fs.rmdir('./assets', (err) => {
        if(err){
            console.log(err)
        }
        console.log('folder removed')
    })
}



//deleting files
if(fs.existsSync('./docs/deleteme.txt')){
    fs.unlink('./docs/deleteme.txt' , (err) => {
        if(err){
            console.log(err)
        }
        console.log('file deleted');

    })
}