jQuery select change show/hide div event

Question

I am trying to create a form which when the select element \'parcel\' is selected it will show a div but when it is not selected I would like to hide the div. Here is my mar

Answer 1

<script>  
$(document).ready(function(){
    $('#colorselector').on('change', function() {
      if ( this.value == 'red')
      {
        $("#divid").show();
      }
      else
      {
        $("#divid").hide();
      }
    });
});
</script>

Do like this for every value Also change the values... as per your parameters

Answer 2

I used the following jQuery-based snippet to have a select-element show a div-element that has an id that matches the value of the option-element while hiding the divs that do not match. Not sure that it's the best way, but it is a way.

$('#sectionChooser').change(function(){
    var myID = $(this).val();
    $('.panel').each(function(){
        myID === $(this).attr('id') ? $(this).show() : $(this).hide();
    });
});

.panel {display: none;}
#one {display: block;}

<select id="sectionChooser">
    <option value="one" selected>Thing One</option>
    <option value="two">Thing Two</option>
    <option value="three">Thing Three</option>
</select>

<div class="panel" id="one">
    <p>Thing One</p>
</div>
<div class="panel" id="two">
    <p>Thing Two</p>
</div>
<div class="panel" id="three">
    <p>Thing Three</p>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Answer 3

Nothing new but caching your jQuery collections will have a small perf boost

$(function() {

    var $typeSelector = $('#type');
    var $toggleArea = $('#row_dim');

    $typeSelector.change(function(){
        if ($typeSelector.val() === 'parcel') {
            $toggleArea.show(); 
        }
        else {
            $toggleArea.hide(); 
        }
    });
});

And in vanilla JS for super speed:

(function() {

    var typeSelector = document.getElementById('type');
    var toggleArea = document.getElementById('row_dim');

    typeSelector.onchange = function() {
        toggleArea.style.display = typeSelector.value === 'parcel'
            ? 'block'
            : 'none';
    };

});