Answers for "node js folder exists"

how to check if a folder exists in node js

const fs = require("fs")

fs.access("./directory-name", function(error) {
  if (error) {
    console.log("Directory does not exist.")
  } else {
    console.log("Directory exists.")
  }
})

fs.writefile

const fs = require('fs');

fs.writeFile("/tmp/test", "Hey there!", function(err) {
    if(err) {
        return console.log(err);
    }
    console.log("The file was saved!");
}); 

// Or
fs.writeFileSync('/tmp/test-sync', 'Hey there!');

node read file sync

// macOS, Linux, and Windows
fs.readFileSync('<directory>');
// => [Error: EISDIR: illegal operation on a directory, read <directory>]

//  FreeBSD
fs.readFileSync('<directory>'); // => <data>