calculate price depend on selection without button-CodePudding

I want to add price and multiply with if statement to clarify here is some price for variable Private=100 for adults and 50 for children or shared=40 for adults and 30 for children with atv=100 for adult 80 for children or without atv=0

if the only adult is booking on the web I want the price to react like the sum of both selections multiply with the number of adult example the adult book shared with ATV so 40 100=140 * number of adult

if adults and children are booking shared with ATV then it should react like 40 100=140 * number of adults 30 80=110 * no of children the result should be summing (110 * number of children) (140 * number of adults)

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    label[for=shared] {
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        <h3>Morning Safari</h3>
        <h2> <label> Total:</label><label class="total Price"></label> </h2>
        <div class="counter1">
          <Label class="Adults">Adults</Label>
          <div class='down' onclick='decreaseCount(event, this)'>-</div>
          <input type='text' value='1' readonly>
          <div class='up' onclick='increaseCount(event, this)'> </div>
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        <div class="counter2">
          <Label class="Children">Children</Label>
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            <input type="radio" name="occupancy" id="private" checked="checked">
            <label for="private">Private</label>
            <input type="radio" name="occupancy" id="shared">
            <label for="shared">Shared</label>
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            <input type="radio" name="atv" id="withatv" checked="checked">
            <label for="withatv">With ATV</label>
            <input type="radio" name="atv" id="withoutatv">
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CodePudding user response：

I did multiple changes to be able to work with this in an easier way:

Step 0 - HTML Include id in adults, children input (to be able to get those values)
Step 1 - HTML After every modification (change children/adult, atv/no atv, private/shared) render not total
Step 2 - JS Calculate new total and render

The Plnkr with the example: https://plnkr.co/edit/XOebeFyHNXFswNI4

Step 0 & 1: HTML:

                onclick="updateTotal()"
              />
              <label for="withatv">With ATV</label>
              <input
                type="radio"
                name="atv"
                id="withoutatv"
                onclick="updateTotal()"
              />
              <label for="withoutatv">Without ATV</label>
            </div>
          </div>

Step 2:

      function calculateTotal() {
        // Define based Prices
        const privateAdultPrice = 100;
        const sharedAdultPrice = 40;
        const privateChildrenPrice = 50;
        const sharedChildrenPrice = 30;

        const withAtvAdultPrice = 100;
        const withAtvChildrenPrice = 80;

        const noAtvPrice = 0;

        // Get the amount of adults and guests
        const adults =  document.querySelector('#adults').value;
        const children =  document.querySelector('#children').value;

        // Get the type of trip
        const isPrivate = document.getElementById('private').checked;
        const isWithAtv = document.getElementById('withatv').checked;        

        // Calculate the specific charge per type of user and type of trip
        const adultTripPrice = isPrivate ? privateAdultPrice : sharedAdultPrice;
        const childrenTripPrice = isPrivate ? privateChildrenPrice : sharedChildrenPrice;
        // Calculate the specific charge per type of user and the vehicule\
        const adultVehiclePrice = isWithAtv ? withAtvAdultPrice : noAtvPrice;
        const childrenVehiclePrice = isWithAtv ? withAtvChildrenPrice : noAtvPrice;      

        // Finally, do the maths
        const adultPrice = adults * (adultTripPrice   adultVehiclePrice)
        const childrenPrice = children * (childrenTripPrice   childrenVehiclePrice)

        // return the value
        return adultPrice   childrenPrice;                  
      }

      function updateTotal() {
        const total = calculateTotal();
        console.log(total);
        document.querySelector('#totalPrice').innerHTML = total;
      }