javascript does a file exist code example

Example 1: javascript file exists check

// checking existence of file synchronously
function doesFileExist(urlToFile) {
    var xhr = new XMLHttpRequest();
    xhr.open('HEAD', urlToFile, false);
    xhr.send();
     
    return xhr.status !== 404;
}

Example 2: js check file exist

import fs from 'fs';

const path = './file.txt';

try {
  if (fs.existsSync(path)) {
    //file exists
  }
} catch(err) {
  console.error(err);
}