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In: Computer Science

Examine the following code, which contains six common bugs. In a separate Microsoft Word (or other...

Examine the following code, which contains six common bugs. In a separate Microsoft Word (or other word processing or text file), identify the line number of at least three (3) bugs as well as a brief description of each bug. 1. 2.

1. <!DOCTYPE html>

2. </html>

3. <head> <link rel="stylesheet" href="MyStyle.css"> </head>

4. <body>

5. <nav>

6. <a href="GroceryHome.html">Home</a> |

7. <a href="Products.html">Products</a> |

8. <a href="AboutUs.html">About Us</a> |

9. <a href="Contact.html">Contact</a>

10. </nav>

11. <header>

12. <h1> My Contact Page</h1>

13. </header>

14. <article>

15. Thank you for your interest in our grocery store. We offer delivery or call-ahead pickup services.

Please provide your contact information, and indicate your family's food preferences.

16. </article> <p>

17. <form action="#" method="post" id="form1">

18. <div class="div1">

19. <label for="fname1" >First Name:</label><br>

20. <input type="text" name="firstname1" id="fname1"><br>

21. <label for="lname1" >Last Name:</label><br>

22. <input type="text" name="lastname1" id="lname1"><br>

23. <label for="phone1" >Phone (i.e. 123-456-7890):</label><br>

24. <input type="text" name="phone1" id="phone1" placeholder="123-456-7890" ><br>

25. <label for="email1" >Email:</label><br>

26. <input type="text" name="email1" id="email1" placeholder="abc@xyz"><br>

27. <label for="contactpreference1" >Prefered contact method?</label><br>

28. <input type="radio" name="contactpreference1" value="phone" checked> Phone

29. <input type="radio" name="contactpreference1" value="email"> Email

30. <br><br>

31. <input type="submit" id="Submit1" value="Submit" onclick=" validateMyPage()" />

32. </div>

33. </form>

34. <form action="#" method="post" id="form2" >

35. <div class="div2">

36. <label for="fname2" >First Name:</label><br>

37. <input type="text" name="firstname2 id="fname2" required><br>

38. <label for="lname2" >Last Name:</label><br>

39. <input type="text" name="lastname2" id="lname2" required><br>

40. <label for="phone2" >Phone (i.e. 123-456-7890):</label><br>

41. <input type="tel" name="phone2" id="phone2" placeholder="123-456-7890" pattern='\d{3}[\-

]\d{3}[\-]\d{4}' required><br>

42. <label for="email2" >Email:</label><br>

43. <input type="email" name="email2" id="email2" placeholder="[email protected]" required><br>

44. <label for="contactpreference2" >Prefered contact method?</label><br>

45. <input type="radio" name="contactpreference2" value="phone" checked> Phone

46. <input type="radio" name="contactpreference2" value="email"> Email

47. <br><br>

48. <input type="submit" id="Submit2" value="Submit" />

49. </div>

50. <br><br>

51. <div class="myColumns ">

52. <select id="mySiteColor" onChange="changeColor(this.value)">

53. <option value="">-- Select a color --</option>

54. <option value="blue">Blue</option>

55. <option value="yellow">Yellow</option>

56. <option value="red">Red</option>

57. </select>

58. </div>

59. </form>

60. <script>

61. function validateMyPage() {

62. var firstname1 = document.getElementById("fname1").value;

63. if (firstname1 != "") {

64. alert("Please enter a first name.");

65. }

66. else {

67. alert(firstname1);

68. }

69. var phone1 = document.getElementById("phone1").value;

70. if (phone1 == "") {

71. alert("Please enter a phone number.");

72. return false;

73. }

74. else

75. {

76. var rePhone = new RegExp(/\d{3}[\-]\d{3}[\-]\d{4}/);

77. var reResult = rePhone.test(phone1);

78. if (reResult == false)

79. {

80. alert("Please provide a valid phone number in the format of: 222-222-2222.");

81. return false;

82. }

83. else

84. {

85. alert(phone1);

86. }

87. }

88. var email1 = document.getElementById("email1")!value;

89. if (email1 == "") {

90. alert("Please enter an email address.");

91. return false;

92. }

93. else

94. {

95. var reEmail = new RegExp(/[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$/);

96. var reResult == reEmail.test(email1);

97. if (reResult == false)

98. {

99. alert("Please provide a valid email address.");

100. return false;

101. }

102. else

103. {

104. alert(“email1”);

105. }

106. }

107. alert("Form data validated by JavaScript successfully!");

108. }

109. function changeColor(value) {

a. var myColor = document.getElementById("mySiteColor").value;

b. document.body.style.color = value;

110. }

111. </script>

112. </body>

113. </html>

Expert Solution

Bug1: on line 37 " are missing for name="fname2"

we always write the name value in between single or double quotes

Bug2: on line 88 unexpected ! we have to use . there

we always fetch a value using id we use.

var email1 = document.getElementById("email1").value; this is the correct way

Bug3: unexpected == on line 96

we always asign value using a single equals

But here you used ==

correct statement is var reResult = reEmail.test(email1);

Bug4; on line 104

syntax error some special characters are in alert

if we need to alert email1 variable we have not to use any quotes

then correct syntax is alert(email1);

Bug5:

on line 109

there is

a. var myColor = document.getElementById("mySiteColor").value;

b. document.body.style.color = value;

here we cannot declare variable as a.var

and we cannot apply style as b.document.body.style color= calue

undefined a and b

Bug6

on line 63 wrong if condition for validation

here we have to use firstname1 == ""

then gives the correct alert message

The modified code is:

<!DOCTYPE html>

</html>

<a href="GroceryHome.html">Home</a>
<a href="Products.html">Products</a>

<a href="AboutUs.html">About Us</a> |

<a href="Contact.html">Contact</a>

</nav>

<h1> My Contact Page</h1>

</header>

Thank you for your interest in our grocery store. We offer delivery or call-ahead pickup services.

Please provide your contact information, and indicate your family's food preferences.
</article> <p>

<form action="#" method="post" id="form1">
<div class="div1">
<label for="fname1" >First Name:</label><br>
<input type="text" name="firstname1" id="fname1"><br>
<label for="lname1" >Last Name:</label><br>

<label for="phone1" >Phone (i.e. 123-456-7890):</label><br>

<label for="email1" >Email:</label><br>

<label for="contactpreference1" >Prefered contact method?</label><br>

<input type="radio" name="contactpreference1" value="phone" checked> Phone

<input type="radio" name="contactpreference1" value="email"> Email

</div>

</form>

<label for="fname2" >First Name:</label><br>

<label for="phone2" >Phone (i.e. 123-456-7890):</label><br>

<input type="tel" name="phone2" id="phone2" placeholder="123-456-7890" pattern='\d{3}[\-

]\d{3}[\-]\d{4}' required><br>

<label for="email2" >Email:</label><br>

<label for="contactpreference2" >Prefered contact method?</label><br>
<input type="radio" name="contactpreference2" value="phone" checked> Phone
<input type="radio" name="contactpreference2" value="email"> Email
<br><br>
<input type="submit" id="Submit2" value="Submit" />
</div>

<option value="">-- Select a color --</option>

<option value="yellow">Yellow</option>

</select>

</div>

</form>

function validateMyPage() {

var firstname1 = document.getElementById("fname1").value;
if (firstname1 == "") {

alert("Please enter a first name.");

}

else {

alert(firstname1);

}

var phone1 = document.getElementById("phone1").value;

if (phone1 == "") {

alert("Please enter a phone number.");

return false;

}

else

{

var rePhone = new RegExp(/\d{3}[\-]\d{3}[\-]\d{4}/);

var reResult = rePhone.test(phone1);

if (reResult == false)

{

alert("Please provide a valid phone number in the format of: 222-222-2222.");

return false;

}

else

{

alert(phone1);

}

var email1 = document.getElementById("email1").value;

if (email1 == "") {

alert("Please enter an email address.");

return false;

}

else

{
var reEmail = new RegExp(/[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$/);

var reResult =reEmail.test(email1);

if (reResult == false)

{

alert("Please provide a valid email address.");

return false;

}

else

{

alert(email1);

}

alert("Form data validated by JavaScript successfully!");

}

function changeColor(value) {

var myColor = document.getElementById("mySiteColor").value;

document.body.style.color = value;

}

</script>

</body>

</html>

IF any queries regarding bugs comment please

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Question

Examine the following code, which contains six common bugs. In a separate Microsoft Word (or other...

Solutions

Expert Solution

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