JavaScript Program to Get Random Item From an Array

In JavaScript, an array is a collection of values stored in a single variable. Obtaining a random item from an array is a typical operation that is required in many programming contexts. For instance, if you have a list of names, and you want to display a random name each time a visitor visits your website, you will need to acquire a random item from the list.

There are different ways to do this work, however in this post, we will investigate some efficient and effective approaches to get a random item from an array using JavaScript.

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Program to Get Random Item From an Array

In the program given below, a random item from an array is accessed.

• A random number between 0 to length of the array is generated using the Math.random() method.
• The Math.floor() returns the nearest integer value generated by Math.random().
• This random index is generated and then the element in that particular index is returned.

// JavaScript Program to get a random item from an array

function getRandomItem(arr) {

    // get random index value
    const randomIndex = Math.floor(Math.random() * arr.length);

    // get random item
    const item = arr[randomIndex];

    return item;
}

const array = [1, 'hello','world' ,22, 5, 8];

const result = getRandomItem(array);
console.log(result);

5

Conclusion

Getting a random item from an array is a popular operation in JavaScript programming, and there are a number of ways to accomplish this. This article explores three distinct JavaScript ways for selecting a random item from an array. This article should have helped you learn how to retrieve a random item from an array in JavaScript; you may now apply this information to your own projects.