You've been tasked with developing a user registration form for a new social media platform. One of the crucial requirements is to include a field for the user's username. The username must consist of alphabetic characters only(min 3 and max 20) and should be mandatory for all users. Additionally, you want to provide clear instructions to users, prompting them “Enter your full name “ and if a user hovers over the field it should display a tooltip with the message “Please enter your full name as the username“. Which of the following code snippets fulfills all of these requirements?<label for="username">Username:</label><input type="text" id="username" required title="Please enter your full name as the username" placeholder="Enter your full name" pattern='[a-zA-Z]{3,20}'><label for="username">Username:</label><input type="text" id="username" required title="Please enter your full name as the username" placeholder="Enter your full name"><label for="username">Username:</label><input type="text" id="username" required title="Please enter your full name as the username" placeholder="Enter your full name" pattern='[a-zA-Z]'><label for="username">Username:</label><input type="text" id="username" required title="Please enter your full name as the username" placeholder="Enter your name" pattern='[a-zA-Z]{3,20}'>

You're developing a form for a job application portal. One of the requirements is to include a field for the applicant's email address. The email address must be in a valid format and should be mandatory for allapplicants. Additionally, you want to provide clear instructions to users, prompting them to "Enter your email address". If a user hovers over the field, a tooltip should appear with the message "Please enter a valid email address". Which of the following code snippets fulfills all of these requirements?<label for="email">Email:</label><input type="email" id="email" required title="Please enter a valid email address" placeholder="Enter your email address"><label for="email">Email:</label><input type="text" id="name" title="Please enter your email address" placeholder="Your Email"><label for="email">Email:</label><input type="email" id="email" required title="Please enter email address" placeholder="Enter Email"><label for="email">Email:</label><input type="text" id="email" required title="Please Provide Your Email" placeholder="Your email">

You're developing a form for an online store checkout process. One of the requirements is to include a field for the user's credit card number. The credit card number should follow the standard format of 16 digits and should be mandatory for all users. Additionally, you want to provide clear instructions to users, prompting them to "Enter your credit card number". If a user hovers over the field, a tooltip should appear with the message "Please enter a valid 16-digit credit card number". Which of the following code snippets fulfills all of these requirements?\<label for="credit_card">Credit Card Number:</label>\<input type="text" id="credit_card" required title="Please enter a valid 16-digit credit card number" placeholder="Enter your credit card number" pattern="[0-9]{16}">\<label for="credit_card">Credit Card Number:</label>\<input type="number" id="credit_card" required title="Please enter your credit card number" placeholder="Your Credit Card Number">\<label for="credit_card">Credit Card Number:</label>\<input type="text" id="credit_card" required title="Please enter a valid credit card number" placeholder="Enter your card number" pattern="[0-9]{16}">\<label for="credit_card">Credit Card Number:</label>\<input type="text" id="credit_card" required title="Please provide your credit card number" placeholder="Your credit card number" pattern="[0_9]{16}">

Following are the requirements for your JavaScript coding.  For each requirement, you will prepare a short description of the code you will write and prepare an example of how the code will look in the HTML for the page.  Prepare any required element or tag names for your code and document them appropriately.  Your code must use the HTML DOM, and you need only to prepare the code for the DOM interaction, not other support functionality that would lead up to the requirements.When the user logs into their support account, use a hidden element on the page to display “Hello” + the name of the user.

For t5he above code please correct it as Generate User Name Fix getUserName so that it returns the user’s name as "LastName, FirstName" (without the quotes). Capitalise the first letter of the first and last names If the lastname is null, just return firstname without a comma e.g. "John" "Smith" should return "Smith, John"

The abbreviation should consist of the first character of the first name, followed by a dot and space, the first character of the middle name followed by a dot and space, and finally, the last name as is.Input format :The input consists of three strings, each representing the first name (fname), middle name (mname), and last name (lname) of a student.Each name is a sequence of non-space charactersOutput format :The output displays a single string representing the alphabetical abbreviation of the student's name.Refer to the sample output for the formatting specifications.Code constraints :In this scenario, the test cases will fall under the following constraints:The length of each name (fname, mname, lname) is at most 19 characters.The names consist only of alphabetical characters (a-z, A-Z).