on select change code example

Example 1: .on change get value

$('select').on('change', function() {
  alert( this.value );
});

Example 2: on change jquery

//Delete comments After getting help.
//You can apply any one approach:


$("#Input_Id").change(function(){   // 1st
    // do your code here
    // When your element is already rendered
});


$("#Input_Id").on('change', function(){    // 2nd (A)
    // do your code here
    // It will specifically called on change of your element
});

$("body").on('change', '#Input_Id', function(){    // 2nd (B)
    // do your code here
    // It will filter the element "Input_Id" from the "body" and apply "onChange effect" on it
});

Example 3: on select price change

<select class="form-control calculate" id="size" name="size">
    <option data-price="5.00" value="Small">Small</option>
    <option data-price="10.00" value="Medium">Medium</option>
    <option data-price="15.00" value="Large">Large</option>
</select>

<span id="item-price">00</span>

<script type="text/javascript" src="jquery-1.11.0.js"></script>
<script type="text/javascript">
var basePrice = 0;

$(".calculate").change(function () {
    newPrice = basePrice;
    $(".calculate option:selected").each(function () {
        newPrice += parseFloat($(this).data('price'));
        console.log(typeof newPrice);
    });
    newPrice = newPrice.toFixed(2);
    $("#item-price").html(newPrice);
});
</script>

Example 4: dropdown option selection change event in jquery

$("select [name='element_name']").change(function(){
	// condition goes here
});