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Our text describes how JavaScript Regular Expressions can be used to validate telephone numbers, postal codes, e-mail addresses and domain names. List 3 other possible

Our text describes how JavaScript Regular Expressions can be used to validate telephone numbers, postal codes, e-mail addresses and domain names. List 3 other possible types of data not mentioned in our text where JavaScript Regular Expressions could be helpful with validation of the information entered on a Web page by a user.
Why is form validation important? Describe a possible hazard of not validating a Web based form.

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