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Question 1 of 30
A web developer is tasked with creating a user registration form that requires users to input their email address, password, and age. The developer needs to ensure that the email address is in a valid format, the password is at least 8 characters long and contains at least one uppercase letter, one lowercase letter, and one number, and the age must be a number between 18 and 120. If the developer implements form validation using JavaScript, which of the following approaches would best ensure that all these conditions are met before the form is submitted?
Use regular expressions to validate the email format, check the password length and character requirements using string methods, and ensure the age is within the specified range using a conditional statement.
Rely solely on HTML5 input types to validate the email and age, while using a simple string length check for the password.
Implement a server-side validation that checks the email format and password requirements after the form is submitted, ignoring client-side validation.
Use a JavaScript library that automatically validates all input fields without customizing the validation rules for each field.

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