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login-y-register's Introduction

import React from 'react' import db from './firebase/config-firebase' import db from './firebase/config-firebase'

const usuario = { nombre: 'Mafer', activo: true, fecha: 0 }

PARA INSERTAR REGISTROS

db.collection( 'usuarios') .add( usuario ) .then( docRef => console.log( docRef ))

PARA ACTUALIZAR

db.collection( 'usuarios') .doc( '0JJNnpeeAfov9WcJP7oT') .update({ nombre: 'Mariafernanda' }) .then( console.log('actualizado'))

update : actualiza el campo 
set detruye la data y reemplaza con la nueva data 

BORRAR REGISTROS

db.collection( 'usuarios') .doc( 'CQoDqqL3TY4O9uCZkx2u') .delete()

TRAER LOS REGISTROS CON SU ID db.collection('usuarios') .onSnapshot(snap => {

    const usuarios = [];

    snap.forEach(snapHijo => {
        usuarios.push({
            id: snapHijo.id,
            ...snapHijo.data()
        })
        console.log(usuarios);
    })
})

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