Tuesday, May 31, 2022
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Detect Darkish Mode Choice with JavaScript


Seemingly each web site, dapp, and app presents a darkish mode desire, and thank goodness. Darkish mode is very helpful once I’m doing late night time coding, and even worse, buying and selling into altcoins. I am presently engaged on implementing a darkish theme on MetaMask and it acquired me to pondering: is there a method we will default to darkish mode if the person’s working system additionally defaults to darkish mode?

You may decide if the person’s working system prefers darkish mode with one fast line of code:

const prefersDarkMode = window.matchMedia("(prefers-color-scheme:darkish)").matches; // true

This code snippet takes benefit of the CSS prefers-color-scheme media question with JavaScript’s matchMedia API.

From a person expertise standpoint, you will must be cautious in utilizing this snippet. This technique is nice for setting a default for brand spanking new customers with out altering the worth for present customers.

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