Mastering Focus and Window Z-Index in JavaScript

Effortlessly Control the Stacking Order of Your Web Elements

Photo by Lena Taranenko on Unsplash

When it comes to web development, managing the stacking order of elements on a page is crucial for creating a visually appealing and functional user experience.

In this article, we’ll dive into the world of JavaScript’s focus and window z-index properties, exploring how you can leverage them to ensure your web content shines.

Understanding Focus Management

The focus property in JavaScript allows you to determine which element on a page currently has the user’s attention. This is particularly useful when dealing with interactive elements like form fields, buttons, or interactive UI components.

To check the currently focused element, you can use the document.activeElement property. This will return the DOM element that currently has the focus. Here's a simple example:

// Get the currently focused element
const currentFocus = document.activeElement;
console.log(currentFocus); // Logs the currently focused element

You can also programmatically set the focus on an element using the focus() method:

// Focus on an element
const myElement =…