rounding - How can I have the value round up in javascript? -


i have code inserting total value textbox, however, math performed not round number. based on code below how can make happen?

function calculate(){     var mrc = document.getelementbyid('box1');     var days = document.getelementbyid('box2');     var total = document.getelementbyid('box3');     var reason = document.getelementbyid('box4');     var approver = document.getelementbyid('box5');     var approvalreason = document.getelementbyid('box6');     var custname = document.getelementbyid('box7');     var caseid = document.getelementbyid('box8');     var intermitent = document.getelementbyid('rb1');     var outage = document.getelementbyid('rb2');  if (outage.checked === true) {     if (days.value * 5 > mrc.value){         total.value = (mrc.value / 30) * days.value;     } else if (days.value > 14) {         total.value = (mrc.value / 30) * days.value;     } else {          total.value = days.value * 5;     }      } else if (intermitent.checked === true){     if (days.value * 3 > mrc.value)     {         total.value = (mrc.value / 30) * days.value;     } else if (days.value > 14) {         total.value = (mrc.value / 30) * days.value;     } else {         total.value = days.value * 3;     }  } }

two things:

you're playing fire using implicit type conversion. element.value returns string, not number, should using parseint() or parsefloat() convert values numbers. instance, if input has value 3, , element.value + 2, result 32.

second, question, math.ceil() rounds float near integer.


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