Create a validation function using Javascript that validates that the username isn't already taken. create an array of existing valid usernames. Include Harry, Elizabeth, and Shana. You can use flags to check each and then use the flag values for the return. (please make the html section and the javascript section separate)

Create a validation function using Javascript that validates that the username isn't already taken. create an array of existing valid usernames. Include Harry, Elizabeth, and Shana. You can use flags to check each and then use the flag values for the return. (please make the html section and the javascript section separate)

New Perspectives on HTML5, CSS3, and JavaScript

6th Edition

ISBN:9781305503922

Author:Patrick M. Carey

Publisher:Patrick M. Carey

Chapter9: Getting Started With Javascript: Creating A Countdown Clock

Section: Chapter Questions

Problem 11CP3

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Perform form validation in JavaScript for client form given below. Write all the code in one function according to given fields and call it on form submission. Design the html form with its input objects. Use name attribute for first three fields and id attribute for last two fields to access the form objects
Hands-On Project 1-3In this project, you will explore how to write text to a specific element in your web page in response to theonclick event handler. To complete the exercise, you will apply the following JavaScript expression:document.getElementById('id').innerHTML = 'text';where id is the value of the id attribute for the page element and text is the text of the content to be writteninto the element. You will use this expression to enhance a web form by displaying the message “Thank you foryour order” when the user clicks the Submit button. Figure 1-25 shows the completed web page.Do the following:1. Use your code editor to open project01-03_txt.html from the HandsOnProject_01 folder. Enter your name and the date in the comment section of the document and save it as project01-03.html.2. Scroll down to the bottom of the file and locate the input element for the Submit button.3. Add an onclick event handler to the <input> tag that changes the innerHTML value of the page element…
Incorrect i would downvote so be sure please a request to you. I need the whole code with compilation.
Imagine that an xhtml document contains the following hyperlink tag I am Seven. When the link text (Seven) is clicked, the servlet with the URL pattern /process is called. Rewrite the code to instead use a form that submits to the same servlet to produce the exact same response using hidden form elements for any form parameters. The form should contain a submit button with the button text Seven. The form method should be get (case sensitive answer).
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Perform form validation in JavaScript for client form given below. Write all the code in one function according to given fields and call it on form submission. Design the html form with its input objects. Use name attribute for first three fields and id attribute for last two fields to accessthe form objects. Name: Required Email: Required. Must be a valid email. Password: Required and must be of length 7 to 12. Country: (Please select a country) v Required. Must select a country. ZIP Code: Required. Must be nurmeric only. Submit
True or False .Each of our header and trailer sentinels contain an actual element.
Perform form validation in JavaScript for client form given below. Write all the code in one function according to given fields and call it on form submission. Design the html form with its input objects. Use name attribute for first three fields and id attribute for last two fields to access the form objects
Perform form validation in JavaScript for client form given below. Write all the code in one function according to given fields and call it on form submission. Design the html form with its input objects. Use name attribute for first three fields and id attribute for last two fields to access the form objects. Name: Required Email: Required. Must be a valid email. Password: Required and must be of length 7 to 12. Country: (Pleese select a country) v Required. Must select a country. ZIP Code: Required. Must be nurþeric only. Submit
Perform form validation in JavaScript for client form given below. Write all the code in one function according to given fields and call it on form submission. Design the html form with its input objects. Use name attribute for first three fields and id attribute for last two fields to access the form objects. Name: Required Email: Required. Must be a valid email. Password: Required and hust be of length 7 to 12. Country: (Please select a country) v Required. Must select a country. ZIP Code: Required. Must be nurmeric only. Submit