Answered: the JavaScript source code

Engineering

Computer Science

the JavaScript source code

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 11CP1

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Create an HTML form to allow the user to enter student names, one at a time, and displays all the names entered in a text area. Each time, the user types a name into a text box, and then presses the ENTER key to add the name in the text box to an array. The array is then sorted in alphabetical order and text area is updated with the new content in the array. Hints: you may use use keypress event. The event handler can take a parameter event. When the Enter key is pressed, the corresponding event.keyCode would be equal to 13.
Open the HTML and JavaScript files provided as start up files (index.html and navigation.js). Then, run the application and notice that when you click on a link in the sidebar, the page is scrolled so the information for the speaker associated with that link is displayed. In other words, this application works even if JavaScript is disabled. In the JavaScript file, add an event handler for the ready event method. Then, within the function for that event handler, add jQuery code that hides the heading and article for all but the first speaker. Add an event handler for the click event of the <a> elements in the sidebar. Then, within the function for that event handler, add jQuery code that hides all the speaker information, gets the value of the href attribute of the link that was clicked, and then uses that value to display the heading and article for the speaker associated with that link.
Use JavaScript to validate user inputs for this HTML form. Create a new HTML page, LabTest.html, build form. Using external JavaScript to do the validation, for example, create a validate_form.js file. Your html code should pass the validation, put an validation icon at the bottom of the page. Following submission instructions for this exercise: No empty input. All form elements should have an input. 2. Maximun input characters of "First name" or "Last name" are 50 characters. Maximun input characters of "Address" are 300 characters. 4. For correct user inputs, show the user inputs in an alert window. Othersiwe, warn the user in an alert window.
Create a web form (action=”lab.php” and target must be a blank page) Fields (make sure all fields have valid type, id and name) Name (text: two words) Verify that the text field has a valid name (firstname lastname) two names (a-zA-Z) with a single space in between if invalid, display a message after the text field is entered, or when the form is submitted. Age: (numeric: 18-30) Submit button Submit button must call your JavaScript routine to check the input fields for errors If anything is incorrect – it should stop and let the user know the error If all is ok, then it should switch to lab8.php and display the received information the code I write will remind you whether the input is valid or not. but when I input invalid and submit it, the webpage still jumps to the .php webpage. what should I do to make that do not jump to PHP result web when I input invalidly?
Scenario Wilson Zoo would like you to implement and test a web application to be used to order drinks at their smoothie and milkshake shack, The Monkey Bar. Basic Application Your web application must have one HTML file and one JS file (no navigation or style is needed) you may use a single style sheet to show and hide elements as per the specification provide suitable form elements to allow the customer to select a drink, by choosing: size, type, ingredients, base and extras, as shown below display the cost of the current drink, for example: provide a button to add the current drink to an order display the full details and cost of all drinks that have been added to the order, for example: display a running total of the cost of the order, for example: provide a button to place the order which simply outputs a message stating the order has been received and resets the screen The customer can pick the following options for their drink: size: small - £2.45 medium…
Task:1. Create a personal information form using HTML5 that includes fields for various personal details (e.g., name,address, phone number) similar to the slide’s example (you can use any programming language you want)2. Implement input validation using regular expressions for two specific fields: USM ID and USM email.Validation Requirements:• USM Email: The form must validate and only accept USM email addresses in the format user@usm.edu.• USM ID: The form must validate USM IDs in the format W10123456 or w10123456. The USM ID always startswith 'W' or 'w' (one position), followed by 10 (two positions), and any combination of digits (0-9) for the next 6positions.Testing Patterns (USM ID):• Valid:• W10123456• w10123456• Invalid:• abc1012345• A10123456• 9998501234• w999123456• w121234565• W10w12345• Ww85012345• w100ABCDEF• 123456850w
I need help with creatufb this HTML. Thank you. Create an HTML form that has one input text field for your Fahrenheit degrees Add a hidden field to the form, use this field to indicate the form is submitted Add a submit button to the form Make sure the form posts to the same file in the "action" Add the PHP code for: On load, populate the input text field with some default degree value, like 87 On Submit, or POST, read the input field value submitted and convert the value to a Celcius degree Use the standard formula (X°F − 32) × 5/9 = Y°C (where 5/9 = 0.5556) Display the resulting Celcius degrees Y°C in the page after you calculate the result, along with the rest of the form, so you can submit again another value
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…
An application has three paragraphs. What set of selector commands would NOT work for you to use to place red text color in the first paragraph and brown background color to the first paragraph , and then add blue background color to the second paragraph, green background color to the third paragraph, and the second and third paragraphs have a yellow text, as illustrated in the illustrated output immediately below The html commands are: <div class = "central"> <p class ="class1"> put text in first </p> <p class="class2">Put text in second</p> <p class="class3">Put text third</p> </div> a. p{color:red;} div p{ background-color:brown;} div.central p.class2{background-color:blue; color:yellow;} p.class3{background-color: green; color:yellow;} b. p{color:red;} div p{ background-color:brown;} div.central…
Imagine that the HTML file for your web page project includes a div element with the id value “cupcake” and you are writing a function to display and rearrange some images within that element. What JavaScript statement would you place in the blank to move the last image within the ccFrostingelement to the beginning of the line and shift the other images one position toward the end? let frostingFiles = ["pinkFr.jpg", "blueFr.jpg", "chocFr.jpg"] let frostingCount = frostingFiles.length; function frostCupcake() { let cupCake = document.getElementById("cupcake"); let ccFrosting = document.createElement("div"); cupCake.appendChild(ccFrosting); ccFrosting.id = "ccFrosting"; for (let i = 0; i < frostingCount; i++) { let image = document.createElement("img"); image.src = frostingFiles[i]; ccFrosting.appendChild(image); } function shuffleBack() { _____ } } a. ccFrosting.appendChild(ccFrosting.firstElementChild); b.…
Given that the options for a set of radio buttons within the customOrder web form share the name attribute color, you can store the value of the color option selected by the user in the colorValue variable by executing the JavaScript statement _____. a. let colorValue = input[name="color"]:checked; b. let colorValue = document.customOrder.value('input[name="color"]:checked'); c. if (color[0].checked) {colorValue = color[0]value;) d. let colorValue = document.querySelector('input[name="color"]:checked').value;
To disable the built-in validation tools provided by your users’ browsers when they interact with your “Get a Quote” web form, you can apply the statementdocument.forms.quoteReqForm.noValidate = true;in your JavaScript file; add the attributenovalidateto the<form>tag in your HTML file; or add the attributeformnovalidateto the tag for the form’s submit button in your HTML file. Select one: True False