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Checking the numbers in a calculator FAQ against the code behind it

By Alan · DEV Community · 11/2/2026

A reader who types a FAQ's own example into the calculator should get the FAQ's answer. I had never checked whether that is true on my site. LandscapeCraft (landscapecraft.ai) has three small material calculators: mulch, gravel and pavers. The calculation functions and the page copy live in one…

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