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HTML5 Form Validation Instance

Source: Internet
Author: User
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HTML5 new forms validation can greatly reduce your reliance on JavaScript code and allow for rich client-side validation, with two examples below.


1.HTML5 client-side checksum: Checkvalidity method

The Checkvalidity method can be used to verify that your input is legitimate, returns true if it is valid, or false.


<!doctype html>


2. Custom error Hint: Setcustomvalidity method
Unfortunately, many browsers now support this method is not perfect, you need to refresh the page before you can re-enter the correct value, or the error will always exist, please note the reader!
I believe that the future browser support for HTML5 will be gradually improved.
<!doctype html>


HTML5 Form Validation Instance

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