CODEWITHSUNDEEP
javascript
Brian Sargent
Brian Sargent

Reputation: 89

Not getting the result I expected from this calculation

I'm using a form to help determine the strength for an action in a game I'm making a plugin for. The player fills in some form fields and selects 1 value from a drop down and then clicks calculate. The result if I use an actual calculator is what I expected but, the result from my javascript function is not. I've been wrestling with it for a while but, can't seem to work out why it's failing to calculate correctly. Below is the function:

function wgtcalc() {
  document.wgtcalc.strDSAtk.value = 
    (document.wgtcalc.strBaseSpeed.value * document.wgtcalc.strAltitude1.value) + 
    (document.wgtcalc.strBaseSpeed.value * document.wgtcalc.strAltitude2.value) + 
    (document.wgtcalc.strDistance.value / document.wgtcalc.strFullSwing.value);
}

Upvotes: 0

Views: 76

Answers (1)

JRG
JRG

Reputation: 15

Try:

function wgtcalc() {
  document.wgtcalc.strDSAtk.value = 
    ( Number(document.wgtcalc.strBaseSpeed.value) *  
      Number (document.wgtcalc.strAltitude1.value)) + 
    ( Number (document.wgtcalc.strBaseSpeed.value) *  
      Number (document.wgtcalc.strAltitude2.value)) + 
    ( Number (document.wgtcalc.strDistance.value) /  
      Number (document.wgtcalc.strFullSwing.value) );
}

As pc-shooter pointed out you're doing a calculation on strings.

Upvotes: 1

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