This Quiz contains totally 10 Questions each carry 1 point for you.
1. Javascript is an _______ language?
Object-Oriented
Object-Based
Procedural
None of the above
Correct!
Wrong!
2. Which of the following keywords is used to define a variable in Javascript?
var
let
Both 1 & 2
None of these
Correct!
Wrong!
3. Which of the following methods is used to access HTML elements using Javascript?
getElementbyId()
getElementsByClassName()
Both A and B
None of the above
Correct!
Wrong!
4. Upon encountering empty statements, what does the Javascript Interpreter do?
Throws an error
Ignores the statements
Gives a warning
None of the above
Correct!
Wrong!
5. Which of the following methods can be used to display data in some form using Javascript?
document.write()
console.log()
window.alert()
All of the above
Correct!
Wrong!
6. How can a datatype be declared to be a constant type?
const
constant
var
let
Correct!
Wrong!
7. What will be the output of the following code snippet?
<script type="text/javascript">
a = 5 + "9";
document.write(a);
</script>
Compilation Error
Runtime Error
14
59
Correct!
Wrong!
8. What will be the output of the following code snippet?
<script type="text/javascript" language="javascript">
var a = "Scaler";
var result = a.substring(2, 4);
document.write(result);
</script>
al
ale
cal
caler
Correct!
Wrong!
9. What will be the output of the following code snippet?
<script type="text/javascript" language="javascript">
var x=12;
var y=8;
var res=eval("x+y");
document.write(res);
</script>
20
128
x+y
None of these
Correct!
Wrong!
10. When the switch statement matches the expression with the given labels, how is the comparison done?
Both the datatype and the result of the expression are compared.
Only the datatype of the expression is compared.
Only the value of the expression is compared.
none of these
Correct!
Wrong!
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