You created a
cookie using JavaScript and want to delete it. How do you do it?
a. You can't. They are valid
until they expire
b. Overwrite it with an
expiry date in the past
c. escape() the value of the
path attribute
d. unescape() the value of
the path attribute
e. You will have to remove
the cookie file from the client machine
f. You will have to wait
till the expiry date is reached
Which of the
following Regular Expression pattern flags is not valid?
a. gi
b. p
c. i
d. g
You declared a
variable. What value would JavaScript assign to the uninitialized variable?
a. NaN
b. null
c. undefined
d. false
e. 0
You have defined an
image tag as follows:
<img id="ERImage" width="100" height="100" onmouseover="ImageChange()" src="Image1.jpg">
The purpose of the ImageChange() function is to change the image source to "Image2.jpg". What will the ImageChange() function look like?
<img id="ERImage" width="100" height="100" onmouseover="ImageChange()" src="Image1.jpg">
The purpose of the ImageChange() function is to change the image source to "Image2.jpg". What will the ImageChange() function look like?
a.
document.getElementById('ERImage').src="Image1.jpg"
b.
document.getElementById('ERImage').src="Image2.jpg"
c.
document.getElementById('ERImage').style.src="Image1.jpg"
d.
document.getElementById('ERImage').style.src="Image2.jpg"
Which of the
following is true about setTimeOut():
a. The statement(s) it
executes run(s) only once
b. It pauses the script in
which it is called
c. clearTimeOut() won't stop
its execution
d. The delay is measured in
hundredths of a second
e. It is required in every
JavaScript function
Which is the
topmost object in the object hierarchy?
a. document
b. window
c. history
d. browser
e. form
Which of the
following are valid JavaScript methods?
a. scrollBy(dx, dy)
b. moveBy(dx, dy)
c. moveTo(x, y)
d. scrollTo(x, y)
e. All of the above are
valid
You want to access
the methods and properties of a Java Applet. What feature would allow you to do
that?
a. The Java console
b. LiveConnect
c. LiveWire
d. LiveWire Pro
What will the
following code snippet do?
<form onreset="alert('Please try again')">
<form onreset="alert('Please try again')">
a. It validates the contents
of the form
b. It prompts the user not
to leave the fields of the form empty
c. It prompts the user to
fill the form once the form is cleared
d. None of the above
You want to
ascertain the protocol of the current URL. Which object would you use?
a. document
b. window
c. history
d. browser
e. form
f. location
What is the final
value of the variable apt?
var apt=2;
apt=apt<<2;
var apt=2;
apt=apt<<2;
a. 2
b. 4
c. 6
d. 8
e. 16
Which of the
following is not a valid JavaScript operator?
a. *=
b. /=
c. %=
d. ^+
What would be the
value of 'ind' after execution of the following code?
var msg="Welcome to ExpertRating"
var ind= msg.substr(3, 3)
var msg="Welcome to ExpertRating"
var ind= msg.substr(3, 3)
a. lco
b. com
c. ome
d. Welcome
What is the result
of the following:
var vName="Kodak Camera"
vName.indexOf("Camera")
var vName="Kodak Camera"
vName.indexOf("Camera")
a. 4
b. 5
c. 6
d. 7
You want to
ascertain the page from which the user has navigated to the current page. How
would you accomplish this?
a. It is not possible in
JavaScript. This can be done only through server side scripting
b. Use document.referrer
property
c. Use the window object
d. None of the above
You declared an
array. What value would JavaScript assign to an uninitialized array element?
a. NaN
b. null
c. undefined
d. false
e. 0
Which of the
following built-in functions is used when you want to access the form elements
using their ids?
a. getItem(id)
b. getFormElement(id)
c. getElementById(id)
d. All of the above
The following
statements show two ways of calling a JavaScript function:
i)onclick = "a();"
ii)onclick="JavaScript:a();"
Which of the following options is correct with regard to the above two statements?
i)onclick = "a();"
ii)onclick="JavaScript:a();"
Which of the following options is correct with regard to the above two statements?
a. There is no difference
between the two statements
b. The first statement is
incorrect and the second one is correct
c. The first statement is
correct and the second statement is incorrect.
You are displaying
image thumbnails on a page. Upon clicking a thumbnail, the image is being
displayed in its actual size. You do not want the user to be able to click the
thumbnails unless they are completely downloaded. What event would you use to
prevent the user from clicking on the thumbnails until they are completely downloaded?
a. OnLoad
b. OnKeyPress
c. OnKeyUp
d. onClick
The statement
navigator.platform indicates 'Win16', but you are running Windows NT. Which of
the following is true?
a. navigator.platform is
supposed to show 'Win16' on Windows NT
b. The userAgent property
reflects the correct operating system
c. The property can be
modified
d. navigator.platform shows
the operating system for which the browser was compiled
e. The browser version is
outdated
Which of the
following can be used for disabling the right click event in Internet Explorer?
a. event.button == 2
b. event.button == 4
c. event.click == 2
d. event.click == 4
You want to create
a popup window that closes after n seconds. How would you do it?
a. You cannot program a
window to close automatically after n seconds. The user will have to manually
close it
b. You would use the
setTimeout function
c. You would use the exit
function of the window object
d. You would use the
terminate function
e. None of the above
While coding a
loop, you come across a condition where you have to ignore the rest of the
statements and continue with the beginning of the loop. Which statement would
you use?
a. exit
b. return
c. continue
d. while
e. break
You want to display
an alert to the user which contains a ' character. Which character would you
use to escape the ' character?
a. *
b. \
c. -
d. @
e. #
f. %
g. |
h. ~
Which best
describes void?
a. A method
b. A function
c. A statement
d. An operator
e. An in-built object
Which of the
following is not a valid JavaScript operator?
a. |
b. ===
c. <<<
d. ^
Which of the
following is not a valid HTML event?
a. ondblclick
b. onmousemove
c. onclick
d. onblink
Which of the
following is not a valid HTML event?
a. onunload
b. onchange
c. onupdate
d. onkeydown
The following code
snippet is used in form validation, the validate function returns a true if all
validations are correct and returns false if the validation fails. The data is
always submitted even if the validation fails, what could be the cause for
this?
<form name=frmadd method=post action=add.asp onsubmit="validate()">
<form name=frmadd method=post action=add.asp onsubmit="validate()">
a. There is no error, the
code is fine
b. There should be a return
statement before the call to the validate function
c.
onsubmit="validate()" should be replaced with
"JavaScript:validate()"
Consider the
following code:
var seter=new Object()
seter.color="blue"
How would you delete the color property of the variable seter?
var seter=new Object()
seter.color="blue"
How would you delete the color property of the variable seter?
a. seter.color delete;
b. delete seter.color
c. delete(seter.color)
d. seter.color.delete
An HTML form
contains 10 checkboxes all named "chkItems". Which JavaScript
function can be used for checking all the checkboxes together?
a. function CheckAll()
{
for (z = 0; z < document.forms.chkItems.length; z++)
{
document.forms.chkItems[z].checked=true
}
}
{
for (z = 0; z < document.forms.chkItems.length; z++)
{
document.forms.chkItems[z].checked=true
}
}
b. function CheckAll()
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems[z].checked=true
}
}
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems[z].checked=true
}
}
c. function CheckAll()
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems.list[z].checked=true
}
}
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems.list[z].checked=true
}
}
d. function CheckAll()
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems.list[z].checked=false
}
}
{
for (z = 0; z < document.forms[0].chkItems.length; z++)
{
document.forms[0].chkItems.list[z].checked=false
}
}
Which JavaScript
feature uses JAR files?
a. Object signing
b. Style sheets
c. Netcaster channels
d. Image rollovers
e. Form validation
Using JavaScript,
how can you determine whether the browser is Netscape or some other?
a.
if(appName=="Netscape"){}
b.
if(document.appName=="Netscape"){}
c.
if(navigator=="Netscape"){}
d.
if(browser=="Netscape"){}
e. None of the above
Which of the
following could you do using JavaScript?
a. Form validation
b. Display a popup window
c. Verify usernames and
passwords against the database
d. Database access
e. Change the color of the
page
f. Display an alert
g. Prompt the user to enter
a value
You've embedded the
document.write() method to write some text within a pair of
<TD></TD> table tags.
Upon loading the file, however, you get some garbled junk on the page where that text should be. What could be the reason for this?
Upon loading the file, however, you get some garbled junk on the page where that text should be. What could be the reason for this?
a. The browser does not
support JavaScript
b. You are using an older
version of the browser
c. The browser does not
support cookies
After clicking on a
link, your main browser window spawns a small new window and writes some text
to it. However, when viewing both window page sources, the small window page
source is identical to that of the large. How can this be?
a. The function writing
to the new window didn't close the document stream
b. It cannot happen
c. Windows receive the
source code of the window that wrote to them
d. Since the new window has
no filename, it receives the source code of its parent
Choose another way
to write x ? a = b : a = c
a. if ('x') { a = b; } else
{ a = c; }
b. if (x) { a = c; } else {
a = b; }
c. x : a = c ? a = b
d. None of above
While coding a
loop, you come across a condition where you have to terminate the loop and
continue with the statements following the loop. Which statement would you use?
a. exit
b. return
c. continue
d. while
e. break
If an image is
placed styled with z-index=-1 and a text paragraph is overlapped with it. Which
one will be displayed on top?
a. The paragraph
b. The image
c. Could be any of the above
Given the statement
var charConvert = toCharCode('x'), what is the error?
a. toCharCode() is a
bogus method
b. Nothing. It will work
fine
c. toCharCode accepts only
numbers
d. toCharCode takes no
arguments
Consider three
variables:
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does pattern.global contain?
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does pattern.global contain?
a. true
b. false
c. undefined
d. null
e. 0
f. 1
The form tag is
defined as follows:
<form onsubmit="return Validate()" action="http://www.mysite.com/">
The validate() function is intended to prevent the form from being submitted if the name field in the form is empty. What will the validate() function look like?
<form onsubmit="return Validate()" action="http://www.mysite.com/">
The validate() function is intended to prevent the form from being submitted if the name field in the form is empty. What will the validate() function look like?
a. <script type="text/JavaScript">
function Validate()
{
if(document.forms[0].name.value == "")
return true;
else
return false;
}
</script>
function Validate()
{
if(document.forms[0].name.value == "")
return true;
else
return false;
}
</script>
b. <script
type="text/JavaScript">
function Validate()
{
if(document.forms[0].name.value == "")
return false;
else
return true;
}
</script>
function Validate()
{
if(document.forms[0].name.value == "")
return false;
else
return true;
}
</script>
c. <script
type="text/JavaScript">
function Validate()
{
if(document.forms[0].name== "")
return false;
else
return true;
}
</script>
function Validate()
{
if(document.forms[0].name== "")
return false;
else
return true;
}
</script>
d. <script
type="text/JavaScript">
function Validate()
{
if(document.forms[0].name == "")
return true;
else
return false;
}
</script>
function Validate()
{
if(document.forms[0].name == "")
return true;
else
return false;
}
</script>
You want to delete
an element from an options array. How would you do it?
a. Set it to false
b. Set it to null
c. Set it to undefined
d. Set it to -1
e. Set it to 0
f. Set it to 1
Consider the
following variable declarations:
var a="adam"
var b="eve"
Which of the following would return the sentence "adam and eve"?
var a="adam"
var b="eve"
Which of the following would return the sentence "adam and eve"?
a.
a.concatinate("and", b)
b. a.concat("and",
b)
c. a.concatinate(" and
", b)
d. a.concat(" and
", b)
Which of the
following code snippets is more efficient and why?
<script language="JavaScript">
for(i=0;i<document.images.length;i++)
document.images[i].src="blank.gif";
</script>
<script language="JavaScript">
var theimages = document.images;
for(i=0;i<theimages.length;i++)
theimages[i].src="blank.gif"
</script>
<script language="JavaScript">
for(i=0;i<document.images.length;i++)
document.images[i].src="blank.gif";
</script>
<script language="JavaScript">
var theimages = document.images;
for(i=0;i<theimages.length;i++)
theimages[i].src="blank.gif"
</script>
a. Both are equally
efficient
b. The first code is more
efficient as it contains less code
c. The first code is more
efficient as it employs object caching
d. The second code is
more efficient as it employs object caching
You have written
the following function to change the source of an image at runtime:
function changeimg(givenImg)
{
document.getElementById('imageID').src=givenImg
}
You would like the source of the image to change to "image2.gif" only for the time that the user clicks on the image. Which of the following will you use?
function changeimg(givenImg)
{
document.getElementById('imageID').src=givenImg
}
You would like the source of the image to change to "image2.gif" only for the time that the user clicks on the image. Which of the following will you use?
a. <img
id="imageID" src="image1.gif" width="50"
height="60" onmousedown="changeimg(image1.gif)"
onmouseup="changeimg(image2.gif)">
b. <img
id="imageID" src="image1.gif" width="50"
height="60" onmouseclick="changeimg(image2.gif)" onmouseup="changeimg(image1.gif)">
c. <img
id="imageID" src="image2.gif" width="50"
height="60" onmousedown="changeimg(image1.gif)"
onmouseup="changeimg(image2.gif)">
d. <img
id="imageID" src="image2.gif" width="50"
height="60" onmousedown="changeimg(image2.gif)" onmouseup="changeimg(image1.gif)">
e. <img
id="imageID" src="image1.gif" width="50"
height="60" onmousedown="changeimg('image2.gif')"
onmouseup="changeimg('image1.gif')">
Are the following
two statements the same?
object.property
object[''property'']
object.property
object[''property'']
a. Yes
b. No
Which of the
following is not a JavaScript string method?
a. rep
b. split
c. substr
d. slice
Consider the
following JavaScript alert:
<script type="text/JavaScript">
function message()
{
alert("Welcome to ExpertRating!!!")
}
</script>
You want the user to see the above message upon opening the page. How will you implement this?
<script type="text/JavaScript">
function message()
{
alert("Welcome to ExpertRating!!!")
}
</script>
You want the user to see the above message upon opening the page. How will you implement this?
a. <body
onload="message()">
b. <body
onunload="message()">
c. <body
onsubmit="message()">
d. <body
onreset="message()">
You are setting
cookies with JavaScript. What happens to cookies.txt data if the file exceeds
the maximum size?
a. Your script automatically
generates a run-time error
b. Your script automatically
generates a load-time error
c. All processes using
document.cookie are ignored
d. The file is truncated
to the maximum length
What does the
following code snippet do?
<input type="radio" name="r1" value="radio1" onclick="this.checked=false;alert('sorry')">
<input type="radio" name="r1" value="radio1" onclick="this.checked=false;alert('sorry')">
a. The code is invalid
b. The code makes it
necessary for the user to select the radio button
c. The code disables the
radio button
d. The code displays an
alert when the user selects the button
How would you
declare a global variable in your JavaScript code?
a. All variables are local
in JavaScript
b. You will have to
declare the variable between the 'script' tags and outside a function to make
the variable global
c. You will have to precede
the variable name with the constant global
d. You will have to declare
the variable in an external file
How would you
randomly choose an element from an array named myStuff if the number of
elements changes dynamically?
a. randomElement =
myStuff[Math.floor(Math.random() * myStuff.length)];
b. randomElement =
myStuff[Math.ceil(Math.random() * myStuff.length)];
c. randomElement =
myStuff[Math.random(myStuff.length)];
d. randomElement =
Math.random(myStuff.length);
Which of the
following declarations is not valid?
a. var a
var b
var c
var b
var c
b. var a, b, c
c. var a=10, b=20, c=30
d. All are valid
How will you change
the color of all the paragraph text to blue when the mouse is placed over
paragraph, and reset it back when the mouse leaves?
a. <p
onmouseover="style.color='black'"
onmouseout="style.color='blue'"> The text of the
paragraph..</p>
b. <p
onmouseover="style.color='blue'" onmouseout="style.color='black'">
The text of the paragraph..</p>
c. <p
onmouseout="style.color='blue'"> The text of the
paragraph..</p>
d. <p
onmouseover="style.color='blue'"> The text of the
paragraph..</p>
e. <p
onmousein="style.color='blue'"
onmouseout="style.color='black'"> The text of the
paragraph..</p>
Which property
would you use to redirect a visitor to another page?
a. document.URL
b. window.location.href
c. document.location.href
d. link.href
e. window.location
What will the
following code snippet do?
onMove="window.status='come on in!'"
onMove="window.status='come on in!'"
a. It displays the message
'come on in!' when the user moves the mouse over the document
b. It displays the message
'come on in!' when the user clicks the mouse on the document
c. It displays the message
'come on in!' when the user moves the window
d. None of the above
Consider the three
variables:
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does outCome[0] contain?
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does outCome[0] contain?
a. true
b. false
c. JavaScript1.2
d. null
e. 0
You want to keep track
of when the user highlights text within a text or textarea object. Which event
would you use?
a. onSelect
b. onBlur
c. onChange
d. onMove
e. None of the above
How would you check
whether the variable vRast exists or not?
a. if (typeof
vRast="undefined") {}
b. if (typeof vRast
=="undefined") {}
c. if (vRast.defined =true)
{}
d. if (vRast.defined ==true)
{}
Which of the
following shortcuts can be used for writing multiple document.write statements?
a. for(document){}
b. with(document) {}
c. This(document){}
d. None of the above
Given the following
window.open function:
window.open(url,name,"attributes")
How will you ensure that different urls are opened in the same window?
window.open(url,name,"attributes")
How will you ensure that different urls are opened in the same window?
a. The second attribute,
name should be the same
b. The name attribute should
be null
c. The name attribute should
be omitted
d. The name attribute should
be different
e. None of the above
Which of the
following is not a valid JavaScript function?
a. apply()
b. call()
c. toString()
d. All of the above are
valid
Consider the three
variables:
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does pattern.ignoreCase contain?
someText = 'JavaScript1.2';
pattern = /(\w+)(\d)\.(\d)/i;
outCome = pattern.exec(someText);
What does pattern.ignoreCase contain?
a. true
b. false
c. undefined
d. null
e. 0
You are allowing
the user to upload image files. You want to be able to capture the attributes
of the image such as width and height using JavaScript. How would this be
possible?
a. It is not possible using
JavaScript
b. You would use the
Image object such as var img = new Image
c. You would use the Img object
d. This is possible only on
the server side using a component
e. None of the above
You need to be able
to determine which page of the web site has been the most recently modified.
Which object would enable you to do this?
a. document
b. window
c. history
d. browser
e. form
f. location
Consider the
following JavaScript function to change the color of the text box named
''txtName'':
function color(col)
{ document.forms[0].txtName.style.background=col }
You want that the color of the text box should change to green only while the user is pressing a key?
function color(col)
{ document.forms[0].txtName.style.background=col }
You want that the color of the text box should change to green only while the user is pressing a key?
a. <input type=''text''
onkeydown=''color('white')'' onkeyup="color('green')''
name=''txtName''>
b. <input type=''text''
onkeydown=''color('green')'' onkeyup=''color('white')'' name=''txtName''>
c. <input type=''text''
onkeydown=''color('green')'' name=''txtName''>
d. <input type=''text''
onkeydown=''color('white')'' name=''txtName''>
e. <input
type=''text'' onkeypress=''color('green')'' onkeyup=''color('white')''
name=''txtName''>
Which of the
following cannot be achieved using JavaScript?
a. Read or write from
external files (except .js files)
b. Access or modify browser
settings
c. Launch client processes
(eg windows applications)
d. Launching the default
email application of the client
You want to create
a variable called newDate that contains the date February 1 of the current
year. Which option will you use?
a. var newDate=new
Date(today.getFullYear(), 2, 2)
b. var newDate=new
Date(today.getFullYear(), 1, 1)
c. var newDate=new
Date(today.getCurrYear(), 2, 1)
d. var newDate=new
Date(today.getCurrYear(), 1, 1)
How would you
invoke the browser's Add To Favorite Dialog?
a. Use the
window.AddFavorite method
b. Use the
document.AddFavorite method
c. Use the
window.external.AddFavorite method
d. It is not possible using
JavaScript
How would you use a
timer with a function called rearrange()?
a.
tmr=setTimeout("rearrange ()",1)
b.
tmr=Timer(1,"rearrange ()")
c. tmr=Timer("rearrange
()",1)
d.
tmr=setTimeout(1,"rearrange ()")
Consider the
following image definition:
<img id="logo" src="companylogo1.gif" height="12" width="12" >
How can you change the image to "companylogo2.gif" when the page loads?
<img id="logo" src="companylogo1.gif" height="12" width="12" >
How can you change the image to "companylogo2.gif" when the page loads?
a.
logo.source="companylogo2.gif"
b.
logo.source="companylogo1.gif"
c.
document.getElementById('logo').src="companylogo1.gif"
d.
document.getElementById('logo').src="companylogo2.gif"
You are enabling
cookies with JavaScript. What would be the default setting for the expires
attribute of the document.cookie property?
a. The duration of the
browser session
b. The duration the current
document stays loaded
c. Twenty-four hours from
the time the cookie is set
d. There is no default
setting
e. The duration for which
the machine is on
Which of the
following is not a valid string method?
a. link()
b. italics()
c. str()
d. sup()
Which of the
following is true?
a. If onKeyDown returns
false, the key-press event is cancelled
b. If onKeyPress returns
false, the key-down event is cancelled
c. If onKeyDown returns
false, the key-up event is cancelled
d. If onKeyPress returns
false, the key-up event is canceled
Which of the
following properties can you use to dynamically change the value of a
<tr> tag?
a. HTML
b. innerHTML
c. outerHTML
d. text
e. innerText
f. None of the above
What will the
following code snippet do?
document.alinkColor="green"
document.alinkColor="green"
a. It makes the background
color of the document green
b. It makes the color of
the active links green
c. It makes the color of the
visited links green
d. It makes the color of all
links green
e. None of the above
Consider the
following code snippet:
<form name="frmOne">
<select name="selList" size="1" onChange="change()">
<option value="http://www.hotmail.com">tHomail</option>
<option value="http://www.yahoo.com">Yahoo</option>
</select>
</form>
You want that when an option button is selected, the appropriate website should be opened immediately. What will the change() function look like?
<form name="frmOne">
<select name="selList" size="1" onChange="change()">
<option value="http://www.hotmail.com">tHomail</option>
<option value="http://www.yahoo.com">Yahoo</option>
</select>
</form>
You want that when an option button is selected, the appropriate website should be opened immediately. What will the change() function look like?
a.
url=document.frmOne.selList.options[document.frmOne.selList..item].value
b. url=document.frmOne.selList.options[document.frmOne.selList.selectedIndex].value
c.
location=document.frmOne.selList.options[document.frmOne.selList.item].value.value
d.
location=document.frmOne.selList.options[document.frmOne.selList.selectedIndex].value
How would you
detect the operating system of the client machine?
a. It is not possible using
JavaScript
b. You would use the
navigator object
c. You would use the window
object
d. You would use the
document object
e. None of the above
What would be the
use of the following code?
function validate(field)
{
var valid=''ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'';
var ok=''yes'';
var temp;
for(var i=0;i<field.value.length;i++)
{
temp='''' + field.value.substring(i,i+1)
if(valid.indexOf(temp)==''-1'')
{
ok=''no'';
}
}
if(ok==''no'')
{
alert(''error'');
field.focus();
}
}
function validate(field)
{
var valid=''ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'';
var ok=''yes'';
var temp;
for(var i=0;i<field.value.length;i++)
{
temp='''' + field.value.substring(i,i+1)
if(valid.indexOf(temp)==''-1'')
{
ok=''no'';
}
}
if(ok==''no'')
{
alert(''error'');
field.focus();
}
}
a. It will force a user to
enter only numeric values
b. It will force a user to
enter only alphanumeric values
c. It will force a user
to enter only character values
d. None of the above
Consider the
following code:
var vNew=new Date()
Which of the following options will return true?
var vNew=new Date()
Which of the following options will return true?
a. vNew instanceof boolean
b. vNew instanceof object
c. vNew instanceof Date
d. All of the above
You want to find
out the resolution of the screen. How would you do it?
a. It is not possible
b. You would use the
screen object
c. You would use the
document object
d. You would use the window
object
e. None of the above
Which of the
following escape sequences represents form feed?
a. //f
b. 'f'
c. /f
d. \f
You have created an
object. How would you add a property to the object class?
a. With the prototype()
method
b. With the prototype
property
c. It cannot be done
d. With the this object
What is the
difference between calling a JavaScript function directly like onclick =
"a()" and onclick="JavaScript:a()" where a() is a function
written in JavaScript?
a. There is no difference
b. The first technique is
correct, only the second is incorrect
c. The second statement
is more efficient than the first
d. The first statement looks
for a function a() written in any language, whether it is JavaScript or
vbscript, and the second technique looks for a function a() specifically
written in JavaScript
e. None of the above
How would you
double the size of an image on a mouseover event, if the original width and
height are both 100px and the id of the image is 'logo'?
a.
document.getElementById('logo').style.width="200"
document.getElementById('logo').style.height="200"
document.getElementById('logo').style.height="200"
b.
document.getElementById('logo').style.width="100"
document.getElementById('logo').style.height="100"
document.getElementById('logo').style.height="100"
c.
document.getElementById('logo').width="200"
document.getElementById('logo').height="200"
document.getElementById('logo').height="200"
d.
document.getElementById('logo').width="100"
document.getElementById('logo').height="100"
document.getElementById('logo').height="100"
How would you test
whether a browser window is still open?
a. Use the isOpen method of
the window object reference variable
b. It is not possible to
test whether an instance of the browser window is open
c. Use the closed
property of the window object to test whether the window is open
d. Use the open method of the
document object
Which of the
following are not valid HTML 4.01 events?
a. onmouseover
b. onmouseout
c. onmouseabove
d. onmousedown
e. onmousein
You do not want the
end user to see the JavaScript code embedded in the HTML file when the user
views the source of the HTML page. How would you achieve this?
a. This is not possible
b. Use externally linked
files which hold the JavaScript code
c. Modify the headers of the
page
d. Change the MIME type of
the page
When does the load
event of the browser occur?
a. When the browser receives
header information
b. When the browser starts
displaying the content
c. When the browser
receives all the page information, including framesets
d. When the browser receives
all the page information, including framesets and displays it
e. None of the above
You are writing a
JavaScript function that will accept user input. Which of the following will
you use?
a. The prompt method
b. The alert method
c. A form field
d. All of the above
You want to
validate the value in a field as soon as the user moves out of the field by
pressing the tab key. Which event would you use?
a. onblur
b. onfocus
c. lostfocus
d. gotfocus
e. None of the above
A form contains two
fields named id1 and id2. How can you copy the value of the id2
field to id1?
a.
document.forms[0].id1.value=document.forms[0].id2.value
b.
document.forms[0].id2.value=document.forms[0].id1.value
c.
document.id1.value=document.id2.value
d.
document.id2.value=document.id1.value
Consider an HTML
form with a checkbox and a text field. When data is entered and the return key
is pressed, the data seems to be lost before the user can click on the button
that calls the processing function. How do you correct this?
a. Add a TYPE=HIDDEN INPUT
to the form
b. Trap the return
keypress and return (null)
c. Add 'return false' to
onsubmit="..." in the FORM tag
d. Instruct the user not to
press the Return key
e. Modify the ENCTYPE
property of the form
Which of the
following can you use to determine whether cookies are enabled in a browser or
not?
a. (navigator.Cookie)? true
: false
b.
(application.cookieEnabled)? true : false
c.
(navigator.cookieEnabled)? true : false
d. (application.cookie)?
true : false
Which of the
following could you do using JavaScript?
a. Form validation
b. Display a popup window
c. Change the color of the
page
d. Display an alert
e. Prompt the user to enter
a value
f. All of the Above
Consider the
following JavaScript validation function:
<script type="text/JavaScript">
function ValidateField()
{
if(document.forms[0].txtId.value =="")
{return false;}
return true;
}
</script>
Which of the options will you use for calling this function as soon as the user leaves the field?
<script type="text/JavaScript">
function ValidateField()
{
if(document.forms[0].txtId.value =="")
{return false;}
return true;
}
</script>
Which of the options will you use for calling this function as soon as the user leaves the field?
a. <input name=txtId
type="text" onreset="return ValidateField()">
b. <input name=txtId
type="text" onfocus="return ValidateField()">
c. <input name=txtId
type="text" onsubmit="return ValidateField()">
d. <input name=txtId
type="text" onblur="return ValidateField()">
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