Nice ❤️😍😍

I have installed react-viro-cli globally in step 1st If still its showing react-viro not recognized as an internal or external command You can write as npx react-viro init your project

firebase.database().ref('items/').orderByChild('letter').on('value', snapshot => { let items = snapshot.val() Object.values(items).map(i => console.log(i.number, i.letter, i.date)) }) like this you can use