What is the difference between the two lines given below ?
  !!(obj1 &&

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What is the difference between the two lines given below ?

  !!(obj1 && obj2); (obj1 && obj2);



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2) 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 ?

3) Consider the following code snippet

function printprops(o)
{
for(var p in o)
console.log(p + ": " + o[p] + "\n");
}

What will the above code snippet result ?

4) The function definitions in JavaScript begins with

5) Which of the following is the correct code for invoking a function without this keyword at all, and also too determine whether the strict mode is in effect?

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