Custom validation example:
you can only enter numbers that are a power of 2 in the fields below.
Add Remove
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Your Name (required)
Would you like to leave a message?
Your Message
show group 1hide group 2show group 3
I am group 1a
Field 1
How happy are you today?
😀🙂:-S🙁:'-(
I am group 2 Not much to see here
I am group 3
Enter the value "hello" to show group 4
Hi! Nice to meet you. I'm group 4!