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
Answer : D
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1) Consider the following code snippet :
function constfuncs()
{
var funcs = [];
for(var i = 0; i < 10; i++)
funcs[i] = function()
{
return i;
};
return funcs; }
var funcs = constfuncs();
funcs[5]()
What does the last statement return ?
2) Consider the following code snippet :
var tensquared = (function(x)
{
return x*x;
}
(10));
Will the above code work ?
3) 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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4) A function with no return value is called
5) The function definitions in JavaScript begins with
Identifier and Parantheses
Return type and Identifier
Return type, Function keyword, Identifier and Parantheses
Identifier and Return type
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