JSFiddle - React, Tailwind, and code Playground
by Frank Liu
JavaScript
let obj = {id:1, val: 'apple'};
let arr = [1,2,3];
console.log('obj id = ', obj['id']);
obj.text = 'description';
console.log('obj text = ', obj['text']);
obj['device'] = 'description';
console.log('obj device = ', obj.device);
obj.numbers = arr;
console.log(obj);
arr=[7,8,0];
console.log(obj);