to create an array with 100 elements (5%); assign each of the first 50 elements with a value which equals to its subscript; (2.5%); assign each of the last 50 elements with a value which equals to the addition of its subscript and 2; (2.5%); Calculate the sum and the average of all element values in the array (5%); Use a table to display the subscript, element value of each element in the array; (10%); Hint: write the opening table tag and the first row showing the table headings (first one is for subscript and the second is for element value) into the document. Then use a for loop to write each table row of HTML tags and text into the page document. for(var i = 0; i < array1.length; i++)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Problem 2 (30%): Using JavaScript to write a HTML page:

  • to create an array with 100 elements (5%);
  • assign each of the first 50 elements with a value which equals to its subscript; (2.5%);
  • assign each of the last 50 elements with a value which equals to the addition of its subscript and 2; (2.5%);
  • Calculate the sum and the average of all element values in the array (5%);
  • Use a table to display the subscript, element value of each element in the array; (10%);
    • Hint: write the opening table tag and the first row showing the table headings (first one is for subscript and the second is for element value) into the document.
    • Then use a for loop to write each table row of HTML tags and text into the page document.

for(var i = 0; i < array1.length; i++)

     {

         document.writeln( "<tr><td>" + i + "</td><td>" +

         array1[i] + "</td>"  + "</td></tr>");

     }

    • Then write the closing table tag into the document.

 

  • Display the sum and the average of the elements in the array; (5%);
  • Please save the HMTL file as YourLastName_YourFirstName_Problem2.html
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