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Practice

Arrays

An array is an object that can store multiple values in a single variable.

You can reference each value in the array by using an index.


Creating an Array​

Creating an array is simple. Just include your desired values, separated by commas ,, within square brackets [].

Creating an Array
const fruits = ['Apple', 'Banana', 'Cherry'];
console.log(fruits); // ["Apple", "Banana", "Cherry"]

Accessing Array Values​

To retrieve an item from an array, you need to use its index (a number indicating the position of an element in the array). Array indices start at 0.

Accessing Array Values
const fruits = ['Apple', 'Banana', 'Cherry'];
console.log(fruits[0]); // "Apple"
console.log(fruits[1]); // "Banana"

Determining the Length of an Array​

You can find out how many items are in an array by using the length property.

const fruits = ['Apple', 'Banana', 'Cherry'];
console.log(fruits.length); // 3

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