JSFiddle - React, Tailwind, and code Playground

by wilt

JavaScript

var array = [];

array[0]  = "Foo";
array[1]  = "Bar";
array[-1] = "Fizzbuzz"; // Not a proper array index - kill it

// Result: ["Foo", "Bar", -1: "Fizzbuzz"]
console.log(array);
// Length: 2
console.log(array.length);