How to convert an Object to an Array in JavaScript

You can use Object.keys() and map() to do this.

var obj = {"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0}

var result = Object.keys(obj).map((key) => [Number(key), obj[key]]);

console.log(result);