Array elements can be accessed using their index, starting from 0. You can also modify elements by directly assigning new values to specific indices.

Example:

JavaScript
let fruits = ["Apple", "Banana", "Mango"];
console.log(fruits[0]);  // Output: Apple

// Modifying elements
fruits[1] = "Orange";
console.log(fruits);  // Output: ["Apple", "Orange", "Mango"]