It’s not a secret (especially here), that the User Interface (UI) is a huge part of every app. Some say that if the icon is the front door, the UI ...
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First of all, congrats on your first article here on DEV! Hope to keep seeing more.
I believe components also help bring consistency to a design. This greaty adds to a much cleaner user experience.
On top of that, they help keep things DRY for developers as well as designers.
Keep posting!