JavaScript: Get a random item from an array
JavaScript Array: Exercise-35 with Solution
Write a JavaScript function to get random items from an array.
Visual Presentation:
Sample Solution:
JavaScript Code:
// Function to return a random item from an array
function random_item(items) {
// Use Math.random() to generate a random number between 0 and 1,
// multiply it by the length of the array, and use Math.floor() to round down to the nearest integer
return items[Math.floor(Math.random() * items.length)];
}
// Declare and initialize an array of items
var items = [254, 45, 212, 365, 2543];
// Output the result of the random_item function with the array of items
console.log(random_item(items));
Output:
365
Flowchart:
ES6 Version:
// Arrow function to return a random item from an array
const random_item = items => items[Math.floor(Math.random() * items.length)];
// Declare and initialize an array of items
const items = [254, 45, 212, 365, 2543];
// Output the result of the random_item function with the array of items
console.log(random_item(items));
Live Demo:
See the Pen JavaScript - Get a random item from an array - array-ex- 35 by w3resource (@w3resource) on CodePen.
Improve this sample solution and post your code through Disqus.
Previous: Write a JavaScript function to get nth largest element from an unsorted array.
Next: Write a JavaScript function to create a specified number of elements and pre-filled numeric value array.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.
https://w3resource.com/javascript-exercises/javascript-array-exercise-35.php
- Weekly Trends and Language Statistics
- Weekly Trends and Language Statistics