Revamp Your Website with Dark Mode: A Step-by-Step Guide

Can I use CSS variables to implement dark mode on my website?

Yes, CSS variables can be used to define color variables for dark and light mode. By changing the values of the CSS variables, the entire website's color scheme can be changed.

How can I trigger the dark mode feature using JavaScript?

You can set the event argument to 'click' to trigger the dark mode feature when the button is clicked. The callback function can use the 'classList.toggle' method to toggle the 'dark mode' class on the body element.

Is it possible to save user preferences for dark mode?

Yes, you can use local storage to save the preference for dark mode. The contains() method can check if the 'dark mode' class is present on the body element and save the preference in local storage.

Can I apply the last saved preference for dark mode on page reload?

Yes, additional code can be added to check the last saved preference and apply it on page reload. The theme variable can check if the dark mode key exists in local storage and return the corresponding value.

What is the role of state in implementing dark mode?

State is used to manage data that can be changed or mutated and is used globally in an application. The theme variable in the example is a state as it keeps track of the state of local storage and can change.