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Solution
Submitted 3 months ago

In-browser Markdown Editor

react, shadcn, tailwind-css, vite
Andrew•420
@timshandrew
A solution to the In-browser markdown editor challenge
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Solution retrospective


What are you most proud of, and what would you do differently next time?

I learned a lot with this project. I used various different libraries such as tw-merge, shadcn/ui, react-markdown. I am happy that I was able to navigate their documentation and integrate them into my project.

I am also quite happy about learning to use shadcn. I have developed a few projects now which have included toggle switches in the designs. Prior to this I was creating my own each time. This was getting quite tedious and reciting the pattern from memory was not very effective. I looked to component libraries to solve this problem and found shadcn to be a good match. After getting over a slight learning curve and understanding the ethos behind shadcn, I believe it will be a good tool going forward to give me a good base to work off of and save me a lot of time.

If I were to do this project again I would most likely use TypeScript; I came across quite a few situations where typing would have been nice. I saw a few opportunities where I could have used types to better document my components, as well as a few times where enforcing types on props for example would have led to less error-prone use of components in the future. For example for my theming I used a state which uses a string and should use only values 'light' or 'dark'. Without typing, I have no way to check I haven't simply typed the value wrong in a prop for example.

What challenges did you encounter, and how did you overcome them?

I encountered a lot of challenges in this project. One such problem was with customizing a shadcn component. It uses a library called tw-merge to choose which utility class is ultimately applied to a component if there are multiple classes given which target the same style property. I encountered a problem where my text was not displaying the colour given to it with text-orange. It baffled me for quite a while but it turned out that tw-merge was picking up on my utility class text-preview-h4 which targets the font-size property (preview-h4 is a custom font-size variable, not a colour) and deciding that it targets the 'color' property. This is because of the way tw-merge parses utility names to determine their property. I overcame this by configuring tw-merge as per the docs.

What specific areas of your project would you like help with?

My component structure is currently quite messy I feel and could be cleaned up a lot. Any tips on useful React patterns I could apply would be greatly appreciated!

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When a solution is submitted, we use axe-core to run an automated audit of your code.

This picks out common accessibility issues like not using semantic HTML and not having proper heading hierarchies, among others.

This automated audit is fairly surface level, so we encourage to you review the project and code in more detail with accessibility best practices in mind.

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The report picks out common HTML issues such as not using headings within section elements and incorrect nesting of elements, among others.

Note that the report can pick up “invalid” attributes, which some frameworks automatically add to the HTML. These attributes are crucial for how the frameworks function, although they’re technically not valid HTML. As such, some projects can show up with many HTML validation errors, which are benign and are a necessary part of the framework.

How does the JavaScript validation report work?

When a solution is submitted, we use eslint to run an automated check on the JavaScript code.

The report picks out common JavaScript issues such as not using semicolons and using var instead of let or const, among others.

The report will audit all JS and JSX files in your repository. We currently do not support Typescript or other frontend frameworks.