Unlike arrays and strings, objects don't have a length property to query.
Easily generate UUIDs in standard format using the Web Crypto API.
Send an entire web page (or only part of it) for printing using window.print().
How to send a user to another page immediately upon page load or with a countdown delay.
How to check if a user has provided input to a HTML input element.
Learn how to sort an array of objects by the value of a property.