Ionic storage is not setting value

Question

I keep getting undefined value when trying to set value with ionic storage. Though i do see the value in console on the first instance of console.log

See output values in code:

GeneratePBKDF2(pbkdf2Password) {

  console.log("New password created: " + pbkdf2Password);
  // Output: New password created:PBKDF2$sha256$901$89G9D/PkC521fqOt$9gNgGt6rkhs5UeVlp2oJfI0l3CLpUgk6

  this.storage.set("TempPass", pbkdf2Password);
   // Error output: Uncaught TypeError: Cannot read property 'storage' of undefined

   console.log("Test Output" + pbkdf2Password);
   // Output: null
  }


Start() {
  var password = PasswordGenerator.generate({length: 20,numbers: true});
  MosquittoPBKDF.createPasswordAsync(password, this.GeneratePBKDF2);
  }

Sergey Rudenko · Accepted Answer · 2019-02-16 17:08:44Z

1

Your this is not pointing to component scope as you add your method as argument. Try this approach via fat arrow:

GeneratePBKDF2 = (pbkdf2Password) => {

  console.log("New password created: " + pbkdf2Password);
  // Output: New password created:PBKDF2$sha256$901$89G9D/PkC521fqOt$9gNgGt6rkhs5UeVlp2oJfI0l3CLpUgk6

  this.storage.set("TempPass", pbkdf2Password);
   // Error output: Uncaught TypeError: Cannot read property 'storage' of undefined

   console.log("Test Output" + pbkdf2Password);
   // Output: null
  }

answered Feb 16, 2019 at 17:08

Sergey Rudenko

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1 Comment

Sergey Rudenko Over a year ago

Cool;) yeah just keep in mind that inside the brackets “this” points into different scope

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