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Solution
Submitted over 2 years ago

Calculator made with CSS Grid, Flexbox and React

react
Mirror83•200
@Mirror83
A solution to the Calculator app challenge
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Solution retrospective


Is there more efficient way to perform calculations other than the infix-to-postfix method that I employed?

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Community feedback

  • Adriano•42,890
    @AdrianoEscarabote
    Posted over 2 years ago

    Hi Mirror83, how are you?

    I really liked the result of your project, but I have some tips that I think you will enjoy:

    • To improve the accessibility of the project you could have put an h1. Every page must contain a level 1 header, for people who use screen readers, identity what the main title is.
    • every Html document must contain the main tag, so we can identify the main content, to fix this, wrap all the content with the main tag. HTML5 landmark elements are used to improve navigation experience on your site for users of assistive technology.

    The rest is great!

    I hope it helps... 👍

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How does the accessibility report work?

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.

How does the CSS report work?

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

We've added some of our own linting rules based on recommended best practices. These rules are prefixed with frontend-mentor/ which you'll see at the top of each issue in the report.

The report will audit 1st-party linked stylesheets, and styles within <style> tags.

How does the HTML validation report work?

When a solution is submitted, we use html-validate to run an automated check on the HTML code.

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.

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