function returns undefined value

Question

I have a function named IsValidUrl() that I need that returns some values by its situation(false or true). But inside of this function I have another function that won't let to pass the values to IsValidUrl().

var validUrl = await isValidUrl();

if (!validUrl) {
  console.log(validUrl); ** //validUrl is undefined**

  return res.status(404).send('not found');
}

function isValidUrl() {

  Post.findOne({
    url: req.params.path
  }, function(err, result) {
    if (err) {
      throw err
    } else if (!result) {
      return false
    } else {
      return true
    }
  })
}

How can I send the returned values to the IsValidUrl()?

score 0 · Accepted Answer · answered Mar 26 '19 at 11:42

0

function isValidUrl() {
  return new Promise((resolve, reject) => {
    Post.findOne({
      url: req.params.path
    }, function(err, result) {
      if (err) {
        reject(err);
      } else if (!result) {
        resolve(false);
      } else {
        resolve(true);
      }
    })
  })

}

answered Mar 26 '19 at 11:42

Ayush Gupta

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You must always explain what you change and why, just pasting a block of code without any explanation is not really helpful. – t.niese Mar 26 '19 at 11:45
1

thanks!. it solved my problem – HosseinA7 Mar 26 '19 at 12:14

function returns undefined value

1 Answers1