Undefined variable. Irritants: (yail/yail-string-reverse) Note: You will not see another error reported for 5 seconds

MIT App Inventor Help
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Is this right?

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Does it work for you ?

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Yes it works, Thanks i will attempt the 2nd version of this and see if i run into any problems

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Does this work to make reverse characters?

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Apparently not :slight_smile:

Your problem is the reverse list block, which as we have already shown does not work with the iOS companion.

Use the same approach as I showed for reversing Words, you will have to modify it but it shouold work in the same way.

This
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is all poor coding, the same can be achieved by working with lists correctly.

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Here you are both or either :wink:

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Let me know if the reverse text block throws an error with IOS companion....