Javascript MCQ - English

What are the three important manipulations done in a for loop on a loop variable

Home | Discussion Forum

What are the three important manipulations done in a for loop on a loop variable?

Updation, Incrementation, Initialization
Initialization,Testing, Updation
Testing, Updation, Testing
Initialization,Testing, Incrementation

Answer : B
Sponsored Ad

अगर आप कम्पटीशन एग्जाम की ऑनलाइन तैयारी कर रहे है तो यहाँ से आप फ्री में Online Test

View More Related Question

1) Consider the following code snippet

while (a != 0)
 {
    if (a == 1)
         continue;
    else
         a++;
 }

What will be the role of the continue keyword in the above code snippet?

The continue keyword restarts the loop
The continue keyword skips the next iteration
The continue keyword skips the rest of the statements in that iteration
None of the mentioned

View Answer

2) Consider the following code snippet

function printArray(a)
  {
      var len = a.length, i = 0;
      if (len == 0)
         console.log("Empty Array");
      else
       {
          do
           {
              console.log(a[i]);
          }
 while (++i < len);
      }
 }

What does the above code result?

Prints the numbers in the array in order
Prints the numbers in the array in the reverse order
Prints 0 to the length of the array
Prints “Empty Array”

View Answer

3) Consider the following code snippet

function tail(o)
{
      for (; o.next; o = o.next) ;
     return o;
 }

Will the above code snippet work? If not, what will be the error?

No, this will throw an exception as only numerics can be used in a for loop
No, this will not iterate
Yes, this will work
No, this will result in a runtime error with the message “Cannot use Linked List”

View Answer

4) What will be the step of the interpreter in a jump statement when an exception is thrown?

The interpreter stops its work
The interpreter throws another exception
The interpreter jumps to the nearest enclosing exception handler
None of the mentioned

View Answer

5) What are the three important manipulations done in a for loop on a loop variable?

Updation, Incrementation, Initialization
Initialization,Testing, Updation
Testing, Updation, Testing
Initialization,Testing, Incrementation

View Answer

UP Gk Online Test

taiyari24hour.com

MCQ Category