CODEWITHSUNDEEP
javascriptgulpfs
panthro
panthro

Reputation: 24059

Check if multiple folders exist?

I use fs.stat to check if a folder exists:

fs.stat('path-to-my-folder', function(err, stat) {
    if(err) {
        console.log('does not exist');
    }
    else{
        console.log('does exist');
    }
});

Is there a way to check the existence of multiple paths using only one method?

Upvotes: 0

Views: 396

Answers (2)

samanime
samanime

Reputation: 26607

fs doesn't have anything that does it out of the box, but you can create a function to do it.

function checkIfAllExist (paths) {
  return Promise.all(
    paths.map(function (path) {
      return new Promise(function (resolve, reject) {
        fs.stat(path, function (err, stat) {
          err && reject(path) || resolve()
        });
      });
    }))
  );
};

You would use this like this:

checkIfAllExist([path1, path2, path3])
  .then(() => console.log('all exist'))
  .catch((path) => console.log(path + ' does not exist')

You could tweak it to fail at different points and whatnot, but you get the general idea.

Upvotes: 2

Michał Perłakowski
Michał Perłakowski

Reputation: 92579

No, the File System API doesn't have a function to check if multiple folders exists. You just have to call the fs.stat() function multiple times.

Upvotes: 1

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