Q.1.
To determine whether one object is the prototype of (or is part of the prototype chain of) another object, one should use the

Explanation

Q.2.
The output for the following code snippet would most appropriately be 
var a=5 , b=1
var obj = { a : 10 }
with(obj) 
{
      alert(b)
}

Explanation

Q.3.
The output for the following code snippet would most appropriately be 
var a=5 , b=1
var obj = { a : 10 }
with(obj) 
{
      alert(b)
}

Explanation

Q.4.
The “var” and “function” are

Explanation

Q.5.
Which is a more efficient code snippet ?
Code 1 : 
for(var num=10;num>=1;num--)
{
    document.writeln(num);
}

Code 2 :
var num=10;
while(num>=1)
{
    document.writeln(num);
    num++;
}

Explanation

Q.6.
A statement block is a

Explanation

Q.7.
Consider the following statements 
switch(expression)
{
    statements
}
In the above switch syntax, the expression is compared with the case labels using which of the following operator(s) ?

Explanation

Q.8.
Consider the following statements 
var count = 0;
while (count < 10) 
{
     console.log(count);
     count++;
}
In the above code snippet, what happens?
Q.9.
The enumeration order becomes implementation dependent and non-interoperable if :
Q.10.
Which of the following is not considered as an error in JavaScript?

Explanation

Q.11.
The escape sequence ‘f’ stands for

Explanation

Q.12.
The snippet that has to be used to check if “a” is not equal to “null” is

Explanation

Q.13.
The statement a===b refers to

Explanation

Q.14.
Consider the following snippet code 
var string1 = ”123”;
var intvalue = 123;
alert( string1 + intvalue );
The result would be
Q.15.
A function definition expression can be called

Explanation

Q.16.
What kind of an expression is “new Point(2,3)”?

Explanation

Q.17.
Which of the operator is used to test if a particular property exists or not?

Explanation

Q.18.
Assume that we have to convert “false” that is a non-string to string. The command that we use is (without invoking the “new” operator)

Explanation

Q.19.
The property of a primary expression is

Explanation

Q.20.
Spaces,Punctuation marks are called as __________ Symbols in JavaScript.