Javascript Programming Quiz

1. Which of the following is a syntactically correct for loop?

for (i<=10;i++)
for i=1 to 10
for (i=0;i<=10;i++)
for (i=0;i<=10)

2. Which of the following are javaScript reserved words?

enum
long
finally
All of the above

3. Which statement required if you want to return a value from a function?

continue
break
loop
return

4. Variables are declared with the _______ keyword.

this
int
var
new

5. What will be the output of the following JavaScript code?

function myfun() 

{

    document.getElementById ("demo").innerHTML = Boolean(21 > 15);

}

true
false
error
0

6. What is the output for code A and B?

Code A: 

var x = 10; 

y = --x + 1;

alert(y);


Code B: 

var x = 10;

y = x-- + 1;

alert(y);

10,10
10,11
11,10
11,11

7. The regular expression to match any one character not between the brackets is __________

[....]
[^]
[^...]
[\D]

8. Which of the following true about JavaScript variable?

JavaScript variable names are case-sensitive
JavaScript variable names should not start with a numeral
You should not use any of the JavaScript reserved keywords as a variable name.
All of the above

9. A programming language can be called object-oriented if it provides ________ basic capabilities to developers

1
2
3
4

10. Which of the following statements is/are TRUE about DOM?

W3C standard
Each page can have multiple Document objects
form elements can be accessed using the form object
Both A and C