File deletion with Fs not working

Question

I have a if to delete a file, however it is not being deleted and is not throwing errors.

Does anyone have any idea?

if (results[0].photo != `arquivos/imgpadrao.jpg`) {
  fs.unlink(`./public/${results[0].photo}`);
}  

Answer 1

You are using an asynchronous method (fs.unlink), waiting for a callback for when it is solved. Thus, you should use a function of callback to see if there were any mistakes:

if (results[0].photo !== `arquivos/imgpadrao.jpg`) {
  fs.unlink(`./public/${results[0].photo}`, (err) => {
    if (err) {
      console.log('Houve algum erro!', err);
    } else {
      console.log('Tudo certo! Arquivo removido.');
    }
  });
}

You can also use the synchronous version of this method, fs.unlinkSync, performing the error procedure with a try/catch:

if (results[0].photo !== `arquivos/imgpadrao.jpg`) {
  try {
    fs.unlinkSync(`./public/${results[0].photo}`);
    console.log('Tudo certo!');
  } catch (err) {
    console.log('Houve algum erro!', err);
  }
}

Answer 2

Use the unlinkSync to exclude:

fs.unlinkSync(`./public/${results[0].photo}`);

Or use the Promise fs.unlink(`./public/${results[0].photo}`).then(res => {}).catch(err => {})