Tips for simulating a Ref

Question

Tips for simulating a Ref

I have a Vue3 component where, within the setup(), I have defined the following function:

const writeNote(note: Ref<Note>) => { console.log(`note ${note.id}`) }

This function takes a Ref<Note>, with Note being an Interface.

There are two scenarios in which this function is called:

Firstly, in the template from a component event (@modified-note='writeNote'), passing a reference to the function
Secondly, in a function within setup() that retrieves instances of type Note and passes them to writeNote. In this case, a regular variable (not a reference) is passed.

How can this inconsistency be resolved?

In the template call, could the sent value be somehow "un-referenced"? (in which case, the argument type in the function would need to be changed to just Note)
In the setup() call, could a normal variable be transformed into a reference for this specific purpose?

typescript vue.js vuejs3

Answer 1

Answer №1

If you want to access the id of a Note using Vue, you can utilize the unref method:

const getNoteId(_note: Ref<Note> | Note) => { 
  const note = unref(_note);

  console.log(`The ID of the note is ${note.id}`);
}

Alternatively, you can create a reactive variable when passing data to getNoteId, as outlined in your initial question. Although this approach requires some modifications to the function's signature and internal workings, it results in cleaner code.

Answer 2

If you want to access the id of a Note using Vue, you can utilize the unref method:

const getNoteId(_note: Ref<Note> | Note) => { 
  const note = unref(_note);

  console.log(`The ID of the note is ${note.id}`);
}

Alternatively, you can create a reactive variable when passing data to getNoteId, as outlined in your initial question. Although this approach requires some modifications to the function's signature and internal workings, it results in cleaner code.

Tips for simulating a Ref

Answer №1

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