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Alpha validation might not be doing what you think

It certainly surprised me the first time I bumped into it

Joel Clermont
Joel Clermont
2026-06-19

The alpha validation rule accepts far more than the A-Z letters you probably expect. In this quick video, I prove it live in a Tinkerwell session and show the one-word change that locks it down.

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Here to help,

Joel

P.S. This is just one of hundreds of surprising facts we share about validation. Grab our validation book.

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