DO WHILE LOOP / FOR LOOP / HOW TO USE N NUMBER OF LOOPS

 DO WHILE LOOP:-


in this loop is also called exist loop because in this loop first execute the statement than check the condition.


<html>

<head>

<script language="JavaScript">


  var i=1;

  do

  {

  document.write(i);

  i=i+1;  

  }

  while(i<=10);

  

</script>

</head>

</html>




FOR LOOP:-


-while and do while loop is required multiple line.

-we have to use and other type of loops is called for loop, it is also called single line loop.

-for loop is dividing into 3 sections.

 1)variable loop

 2)condition loop

 3)increment or decrement


<html>

<head>

<script language="JavaScript">


  var i;

  for(i=1; i<=10; i=i+1) 

  {

  document.write(i); 

  }

  

</script>

</head>

</html>



HOW TO USE N NUMBER OF LOOPS:-


(N= user input)


<html>

<head>

<script language="JavaScript">

  

  var i=1,N;

  N=parseInt(prompt("enter any number"));

  for(i=1; i<=N; i=i+1)

  {

  document.write(i); 

  }

  

</script>

</head>

</html>



TASK 1:-


-convert all looping concept into N number of program.

(10 ki jagah N) 








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