Get Factorial of a Number using jQuery

In mathematics, the factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example,



The value of 0! is 1, according to the convention for an empty product.

Read full about factorial  here on wikipedia.



We will use For loop for getting factorial  of  a number, so we just have to decrease value by one and multiply with previous holding temporary value, We have to initiate temporary value with 1.


The Following will be code:



<input type="text" name="factroial4" id="factroial4" />

<br/>

<button type="button" name="button" onclick="GetFactorial();" />
Calculate Factorial
</button>

<br/>

<div id="showresulthere"></div>


<script src="//code.jquery.com/jquery-1.11.2.min.js"></script>

<script>

// function defination

 function GetFactorial()
   {
var value = $("#factroial4").val();
     tempvalue = 1;
     for ( i=value ; i>0 ;  i-- )
      {
         tempvalue *=  i ;
      // this is same as the   tempvalue =  tempvalue * i ;
      }
$("#showresulthere").html("Factorial of "+value+" is :"+tempvalue);
   }
 
// function defination

</script>