How to round numbers in Javascript which are line of code?

Question

It is not single line of code. How to round numbers in Javascript which are line of code? How to round it to 2 decimal points?

 if (aSelectedValue >= bSelectedValue) {
    document.getElementById("Answer").innerHTML = "0€";
    document.getElementById("Answer").innerHTML = "Debug3";
   } else if (bSelectedValue <= 1600) { 

     document.getElementById("Answer").innerHTML = (+bSelectedValue - +aSelectedValue) * 0.075 + "€";
     
   } else if (bSelectedValue <= 1900 && bSelectedValue >=1600 && aSelectedValue < 1900 && aSelectedValue >= 1600) {
    
     document.getElementById("Answer").innerHTML = (+bSelectedValue - +aSelectedValue) * 0.15 + "€";
    
   } else if (bSelectedValue <= 2500 && bSelectedValue >=1900 && aSelectedValue <= 2500 && aSelectedValue >= 1900) {
   
     document.getElementById("Answer").innerHTML = (+bSelectedValue - +aSelectedValue) * 0.5 + "€";
     
   } else if (aSelectedValue >= 1300 && aSelectedValue <= 1600 && bSelectedValue <= 1900) {
    
     document.getElementById("Answer").innerHTML = (1600 - +aSelectedValue) * 0.075 + (+bSelectedValue - 1600) * 0.15 + "€";
     
   } else if (aSelectedValue > 1600 && aSelectedValue <= 1900 && bSelectedValue <= 2500) {
     
     document.getElementById("Answer").innerHTML = (1900 - +aSelectedValue) * 0.15 + (+bSelectedValue - 1900) * 0.5 + "€";
     
   } else if (bSelectedValue <= 2500) {
    
    document.getElementById("Answer").innerHTML = (1600 - +aSelectedValue) * 0.075 + (+bSelectedValue - 1900) * 0.5 + 45 + "€";
    
   }

Here is full

Possible duplicate of [Round to at most 2 decimal places in JavaScript](http://stackoverflow.com/questions/11832914/round-to-at-most-2-decimal-places-in-javascript) — Matthew Spence, Feb 15 '16 at 17:39

Matthew Spence · Answer 1 · 2016-02-15T18:59:39.370

0

Perhaps this?

var number = (1600 - +aSelectedValue) * 0.075 + (+bSelectedValue - 1600) * 0.15;
number = +number.toFixed(2);
document.getElementById("Answer").innerHTML = number + "€";

Or perhaps use a function like so:

function roundNum(number,amount){//amount is the rounding value, in this case, 2
    return +number.toFixed(amount);
}
roundNum(yournumber,2);

This allows you to round each line of code. Note: although you could simply use toFixed() it can cause issues with numbers rounding incorrectly, so there's the little fix of adding +.

edited Feb 15 '16 at 18:59

answered Feb 15 '16 at 17:35

Matthew Spence

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it deletes the euro sign. – Nina Scholz Feb 15 '16 at 17:37
here: `var number = (1600 - +aSelectedValue) * 0.075 + (+bSelectedValue - 1600) * 0.15; number = +number.toFixed(2); document.getElementById("Answer").innerHTML = number + "€";` - also updated my answer. – Matthew Spence Feb 15 '16 at 17:37
Ou i fell rephrase my question. It is not single line of code... That is the point! – user3740905 Feb 15 '16 at 18:35
Updated my answer with an alternative **function** you could run for each line of code. – Matthew Spence Feb 15 '16 at 19:00

How to round numbers in Javascript which are line of code?

1 Answers1