JSFiddle - React, Tailwind, and code Playground

by Yuriy Bablyukh

JavaScript

var arr = [];
console.log("Step a: " + arr);
arr[0] = 1;
arr[1] = true;
console.log("Step b: " + arr);
arr.push("test", 12);
console.log("Step c: " + arr);
arr.unshift('first');
console.log("Step d: " + arr);

console.log("Step e: ");
arr.forEach(
function (value, index, ar) {
    console.log("index: " + index +" - value: " + value);
    console.log();
})

arr.pop();
console.log("Step f: " + arr);

arr.shift();
console.log("Step g: " + arr);

delete arr[1];
console.log("Step h: " + arr);

console.log("Step i: ");
arr.forEach(
function (value, index, ar) {
    console.log("index: " + index +" - value: " + value);
    console.log();
})

arr.length=10;
console.log("Step j: " + arr);
arr.length=2;
console.log(arr);