What will the following JavaScript code snippet work? If not, what will be the error?
function tail(o)
{
for (; o.next; o = o.next) ;
return o;
}
a) No, this will throw an exception as only numerics can be used in a for loop
b) No, this will not iterate
c) Yes, this will work
d) No, this will result in a runtime error with the message “Cannot use Linked List”
Answer: c
Explanation: The above code uses a for loop to traverse a linked list data structure and return the last object in the list. This will perfectly work.
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