Round the result to 2 decimal place using html and javascript

Question

   <script>
     function e(element)
     {
        return document.getElementById(element);
     }

     function f(element)
     {
        return parseFloat(e(element).value);
     }

     function updateResult()
     {

        e("inputK").value = f("inputG")*1.33* (f("inputI")/(f("inputH")+ f("inputI")))
     }

  </script>

I request help in rounding the values to 2 decimal place for the code displayed above

result-- input type="text" id="inputK" readonly="true" i have tried math.round(inputK) it does not work your suggestion will help me in improving the result.

possibly duplicate to https://stackoverflow.com/questions/11832914/round-to-at-most-2-decimal-places-only-if-necessary — Terry Wei, Jul 12 '18 at 05:05
Possible duplicate of [Round to at most 2 decimal places (only if necessary)](https://stackoverflow.com/questions/11832914/round-to-at-most-2-decimal-places-only-if-necessary) — Jon P, Jul 12 '18 at 05:09
Welcome to StackOverflow, please take the [tour] and read the [help]. At StackOverflow, it is preferred that you put effort into solving your question first. There are many answers to this exact question on the internet including this website. — Jon P, Jul 12 '18 at 05:14

score 0 · Answer 1 · answered Jul 12 '18 at 05:07

As mentioned by you are using Math.round() which returns integer only. There are multiple ways to achieve the goal.

Math.round(num * 100) / 100 -- returns number
var numb = 123.23454; numb = numb.toFixed(2); -- returns string
Math.round(num + "e+2") + "e-2" -- returns number
Number.prototype.round = function(places) { return +(Math.round(this + "e+" + places) + "e-" + places); } -- returns number

score 0 · Answer 2 · answered Jul 12 '18 at 06:16

0

e("inputK").value= f("inputK").toFixed(2);

the following code helps in getting me the solution for two decimal place thank you

answered Jul 12 '18 at 06:16

Sathya

3
5

Round the result to 2 decimal place using html and javascript

2 Answers2