Question

In: Computer Science

For this assignment, you are going to build upon several skills that you've learned: Create an...

For this assignment, you are going to build upon several skills that you've learned:

  • Create an object that contains objects.
  • Using querySelectorAll to read a nodeList from the DOM.
  • Looping through the nodeList then updating the HTML page.

Set up

Create the assignment in a "week6" folder with the typical files:

  • index.html
  • css/styles.css
  • js/scripts.js

This is the standard structure that we'll use in all assignments.

Here is the HTML to use for this assignment. Change the meta author tag to include your name!

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Working with Objects and NodeLists</title>
    <meta name="description" content="We want to update an HTML page with information from a data object.">
    <meta name="author" content="C SCI 212 Student">

    <!-- link to external CSS file -->
    <link rel="stylesheet" href="css/styles.css?v=1.0">
</head>
<body>
    <!-- Content of the page goes here. -->
    <h1>Introduction</h1>
    <section class="intro">
        <h2>Introduction</h2>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
    </section>

    <section class="student-info">
        <h2>Student Information</h2>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
    </section>
    
    
    <!-- link to external JS file -->
    <script src="js/scripts.js"></script>
</body>
</html>

The Problem

We have a JavaScript object that contains student information.

We want to update the HTML page with information from the JavaScript object.

Instructions

  1. Use window.onload to set up your program to run after the page has been loaded.
  2. Create a JavaScript object that contains the 5 JavaScript objects

Solutions

Expert Solution

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>Working with Objects and NodeLists</title>
    <meta name="description" content="We want to update an HTML page with information from a data object.">
    <meta name="author" content="C SCI 212 Student">

    <!-- link to external CSS file -->
    <link rel="stylesheet" href="css/styles.css?v=1.0">
</head>
<body>
    <!-- Content of the page goes here. -->
    <h1>Introduction</h1>
    <section class="intro">
        <h2>Introduction</h2>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
    </section>

    <section class="student-info">
        <h2>Student Information</h2>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
        <p></p>
    </section>
  
  
    <!-- link to external JS file -->
    <script src="js/scripts.js"></script>
</body>
</html>

style.css

body {/*for body of html*/
background-color: lightblue;
}

h1 {/*for h1 tag of html*/
color: white;
text-align: center;
}

p {/*for paragraph tah of html*/
font-family: verdana;
font-size: 20px;
}

scripts.js
function studentInfo(){
   var myNodelist = document.querySelectorAll("p");//get total nodelist of <p> tag in html
   var length=myNodelist.length;//get total length of <p> tag in html

   for(let i = 7; i < length; i++){//run for loop for last 7 <p> tags in studentInfo section
       myNodelist[i].innerHTML="Student paragraph with index "+i;//set data inside <p> tag

   }
}
function intro(){
   var myNodelist = document.querySelectorAll("p");//get total nodelist of <p> tag in html
   var length=myNodelist.length;//get total length of <p> tag in html

   for(let i = 0; i < 7; i++){//run for loop for first 7 <p> tags in intro section
       myNodelist[i].innerHTML="Intro paragraph with index "+i;//set data inside <p> tag

   }
}
window.onload = function() {
       //intro();//call function intro
    studentInfo();//call function studentInfo
}

Output

venereology answered 1 year ago
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