https://repl.it/Cgux/1 created by Sylvance

ArrMethods.js

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.push("Kiwi", "Lemon", "Pineapple");
console.log(fruits);
fruits.unshift("Guava");
console.log(fruits);

delete fruits[0];
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

fruits.splice(1,1);
console.log(fruits);

ArrMethods_console_dump.txt

Native Browser JavaScript
>>> [ 'Banana', 'Orange', 'Apple', 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Guava', 'Banana', 'Orange', 'Apple', 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Banana', 'Orange', 'Apple', 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Orange', 'Apple', 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Apple', 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Mango', 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Kiwi', 'Lemon', 'Pineapple' ]
[ 'Lemon', 'Pineapple' ]
[ 'Pineapple' ]
[]