If you have a function f and an object o, you can define a method named m of o
Home | Discussion ForumIf you have a function f and an object o, you can define a method named m of o with
o.m=m.f;
o.m=f;
o=f.m;
o=f;
Answer : A
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1) When does the function name become optional in JavaScript?
When the function is defined as a looping statement
When the function is defined as expressions
When the function is predefined
All of the mentioned
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2) Consider the following code snippet
function hypotenuse(a, b)
{
function square(x)
{
return x*x;
}
return Math.sqrt(square(a) + square(b));
}
What does the above code result?
Sum of square of a and b
Square of sum of a and b
Sum of a and b square
None of the mentioned
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3) Consider the following code snippet :
var tensquared = (function(x)
{
return x*x;
}
(10));
Will the above code work ?
4) What is the difference between the two lines given below ? !!(obj1 && obj2); (obj1 && obj2);
Both the lines result in a boolean value “True”
Both the lines result in a boolean value “False”
Both the lines checks just for the existence of the object alone
The first line results in a real boolean value whereas the second line merely checks for the existence of the objects
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5) Do functions in JavaScript necessarily return a value ?
It is mandatory
Not necessary
Few functions return values by default
All of the mentioned
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