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Javascript
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Q.1
File extension for external JS files
.javascript
.js
.jscript
.script
Q.2
We cannot Place JS Code in the body tag . Say true/false.
True
False.
Q.3
Is JavaScript case sensitive language?
Yes
No
Depends on the browser
Depends on the platform
Q.4
JavaScript is designed for following purpose -
To Style HTML Pages
To Perform Server Side Scripting Opertion
To add interactivity to HTML Pages.
To Execute Query Related to DB on Server
Q.5
Which of the following is NOT a valid starting character for JS variable names?
Uppercase Letter
Lowercase Letter
Dollar Sign
Underscore
Q.6
What is the correct JavaScript syntax to write "Hello World"?
System.out.println("Hello World")
println ("Hello World")
document.write("Hello World")
response.write("Hello World")
Q.7
Which of the following is not a feature of javascript?
Lightweight
Good for the applications which are network-centric
Object oriented
Open source
Complementary to HTML
Q.8
What will be the output of the following script ?
5
true
1
false
Q.9
JavaScript contains a _________________ that assigns a value to a variable based on some condition.
Bitwise Operator
Logical Operator
Assignment operator
Conditional operator
Q.10
Which of the following is not an logical operator ?
&&
||
!
|
Q.11
"+=" operator can operate on following data values.
Float
String
Integer
All Options
Q.12
Which of the following operator is used to concatenate two strings.
Dot
Arrow
Comma
Plus
Q.13
What type of value gets printed if we add following two variables ?var a = "1";var b = 5;
Integer
Long
Number
Text
Q.14
What will be the output of the following code ?
56
Error
No Output
11
Q.15
When you assign a text value to a variable, we put text value in the pair of _________.
Single Quote
Double Quote
Square Bracket
Both a and b
Q.16
Variable name contain following type of characters -AlphabetDigitsUnderscoreSpecial CharactersSelect the correct option.
3 4 2
4 3 1
1 2 3 4
1 2 3
Q.17
Which JavaScript variable cannot be used as First character but can be use after first character ?
Asterisk
Dollar Sign
Underscore
Digit
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