Data Lists

An array is a data structure where elements are stored in order and have numeric indices.

Methods for the End of the Array

• push: Adds an element to the END.
• pop: Removes an element from the END.

Methods for the Beginning (slow)

• shift: Removes an element from the BEGINNING.
• unshift: Adds an element to the BEGINNING.

let fruits = ["Apple", "Orange"];
fruits.push("Pear"); // ["Apple", "Orange", "Pear"]
alert( fruits.pop() ); // "Pear"