JSFiddle - React, Tailwind, and code Playground

JavaScript

var test = [[2345235345,"test"]]
console.log(test);
test[0][0] = 1111111;

var testb = {};
testb.test = "test";
console.log(testb);
testb.test = "sdfgsdfg";

var testc = ["test","test2"];
console.log(testc);
testc[0] = "sdxfsdf";