JSFiddle - React, Tailwind, and code Playground

JavaScript

var a = [[[2, 5], [6, 10], [10, 7], [11, 15]],[[0, 9], [1, 16], [3, 19], [4, 15]],[[0, 7], [5, 16], [8, 17], [12, 19]]];

alert(a[0]);

console.log(a[0]);