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Here’s what to do. Technically it’s a little harder. Don’t enter labels in the text field because as soon as you type they are gone. How do you check you responses when reviewing a completed form?

Can someone explain that sentence to me?

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Imagine you have a placeholder in a date field that tells you the format in which you should enter the date ("mm/dd/yyyy"). You enter the date and that information is no longer visible. You finish the form and think "Wait a second, was that supposed to be mm/dd/yyyy or mm/dd/yy?". That's the general idea.

Yeah, because of all those people that "review forms" after filling them in!

I believe he's saying to not use "placeholder" attributes to indicate whether a field is required because it disappears when a value is typed into it. Instead, you should use some helper text underneath the field.

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