Retrieving values and storing them into Typescript variables

[abelardolg]

I have coded this example:

`
myVariable: string;
constructor(protected localStorage: AsyncLocalStorage) {
const user: User = { firstName: 'Henri', lastName: 'Bergson' };

this.localStorage.setItem('user', user).subscribe(() => {});

this.localStorage.getItem<User>('user').subscribe((myUser) => {

  this.myVariable = myUser.lastName;

  console.log(myUser.firstName);
});

console.log(this.myVariable); // <- undefined

}`

Why 'this.myVariable' is 'undefined'? I assigned into this variable the 'myUser.lastName' value.

Best regards,

[cyrilletuzi]

All operations in this lib are asynchronous, so your code is wrong. You should wait the setter has finished before accessing the value :

this.localStorage.setItem('user', user).subscribe(() => {

  this.localStorage.getItem<User>('user').subscribe((myUser) => {

    // Do something

  });

});`

The rest is just Angular, please use stackoverflow for any support question.

[hellseyfer]

I'm experimenting the same problem with storagemap, cant assign subscription response to any variable