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Plus Two Computer Science
Chapter 6: Client Side Scripting UsingJavaScript
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1.JavaScript was developed by _______
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1 point
Brendan Eich
Rasmus Lerdorf
John Von Neumann
Dr. Bjarne Stroustrup
2.In JavaScript ________ function is used to print a text in the body section of an HTML page.
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1 point
document.print()
write()
document.write()
documentwrite()
3. Which is not a basic data types in JavaScript
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1 point
Boolean
Number
Void
String
4. In JavaScript, variables can be declared by using the keyword _____
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key
var
None of these
variable
5.The __________operator is used to concatenate two strings
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1 point
++
*
+
$
6. false is a ______ type data
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1 point
String
Boolean
Character
Number
7. _______ is a multi branching statement
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1 point
for
while
if - else
switch
8. The __________function is used to display a message on the screen
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1 point
print()
alert()
write()
message()
9. X=“Computer”; Y=X.length; what is the value of Y
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1 point
8
9
7
10
10. Which function returns the character at a particular position
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1 point
isNaN()
charat()
Charat()
charAt()
11.The function is used to check whether a value is a number or not
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1 point
isNan()
isNumber()
isnan()
isNaN()
12. The _____ event occurs when the mouse pointer is moved onto an object
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1 point
onKeyDown
onClick
onMouseLeave
onMouseEnter
13. X=“JavaScript”;Y = X.charAt(4);What is the value of Y
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1 point
a
S
c
v
14. Name an attribute of <SCRIPT> tag.
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1 point
Language
Text
Face
Width
15. The ______event occurs when the user releases a key on the keyboard
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1 point
onMouseEnter
onMouseLeave
onKeyUp
onKeyDown
16. The _______languages are used for validations of data at the client side itself
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1 point
Client side scripting
Server side scripting
scripting
None of these
17. An HTML file can contain only one <SCRIPT> tag in it
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1 point
True
False
18.The function converts the data into number type
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1 point
Number()
Integer()
parseInt()
Num()
19. What is the extension of JavaScript file
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1 point
.jf
.jsp
.jc
.js
20. A function is usually placed in the head section of a web page only
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1 point
True
False
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