Jquery: hide / show based on variable for class name

Question

I am new to jQuery and need some help with filtering classes. The user can select one of nine buttons to select the types of events to show / hide. Click the color and only events with this color show, and the rest will be hidden. Click "all" and all events will show not a single hidden one. All events start with display:block.

Examples of control buttons:

<li class="all" id="all-events"><a href="#" onclick="showEvents('event-all')">
<img src="swatch-all.png" alt="" /></a></li>

<li class="red" id="red-events"><a href="#" onclick="showEvents('event-red')">
<img src="swatch-red.png" alt="" /></a></li>

<li class="blue" id="blue-events"><a href="#" onclick="showEvents('event-blue')">
<img src="swatch-blue.png" alt="" /></a></li>

Events are pulled from the database using php and look like this:

<div id="bigCal">
    <p class="all"><a href="http://foo.com" title="All event">All events</a></p>
    <p class="blue"><a href="http://bar.com" title="Blue event">Blue event</a></p>
    <p class="red"><a href="http://foobar.com" title="Red event">Red event</a></p>
</div>

I have been working on jQuery for two days! Not sure whether to use .filtereither .hasClassor .is. None of this works. The simplest one I tried was:

function showEvents(color) {
    ($('p').hasClass(color)) ? this.style.display="block" : this.style.display="none";
}

Another attempt that did nothing was

function showEvents(color){
    $("p[className*='event-']").css('display', 'none');
    $("p[className=color]").css('display', 'block');
    if ($("p[className='event-all']")) 
        $("p[className*='event-']").css('display', 'block');
}

Any help would be appreciated!

Answer 1

, .

http://jsfiddle.net/YnFWX/1/

, . , javascript, onclick. , jQuery.

, .

Answer 2

function showEvents(color){
var csscol=color.split('-')[1];//will return red/blue/all from event-red/event-blue/event-all
$('p[class!=' + csscol + ']').hide(); //hide all not equal to csscol
$('p[class=' + csscol + ']').show(); //show all equal to csscol
}

Answer 3

, , , "event-all" showEvents "".

, onclick showEvents('all'), showEvents('blue') .., .

. onclick, jQuery, , , <li>, .

// The is the same as onclick=.... but for ALL <a> elements within an <li>
$("li > a").click(function () {

   // Find the color that was clicked
   var color = $(this).parent().attr("class");

   // "All" is a special case
   if (color == "all") {
      // Show all <p>s in div with ID "bigCal"
      $("#bigCal p").show();
   } else {
      // Hide all <p>s in div with ID "bigCal"
      $("#bigCal p").hide();

      // Show the <p> with the same class
      $("#bigCal p." + color).show();
   }

});

Answer 4

, . onclick, .

Javascript

function showEvents(color) {
         if(color!='all')
         {
            jQuery('#bigCal > p').hide();
            jQuery('.'+color).show();
         }
         else{jQuery('#bigCal > p').show();}
      }

HTML

<ul>
      <li class="all" id="all-events">
        <a href="#" onclick="showEvents('all')">Show All</a>
      </li>
      <li class="red" id="red-events">
        <a href="#" onclick="showEvents('red')">Show Red</a>
      </li>
      <li class="blue" id="blue-events">
        <a href="#" onclick="showEvents('blue')">Show Blue</a>
      </li>
    </ul>
   <div id="bigCal">
      <p class="all"><a href="http://foo.com" title="All event">All events</a></p>
      <p class="blue"><a href="http://bar.com" title="Blue event">Blue event</a></p>
      <p class="red"><a href="http://foobar.com" title="Red event">Red event</a></p>
   </div>

However, I found that Visual jQuery is invaluable when I studied jQuery: http://api.jquery.com/visual/

Answer 5

function showEvents(color){
 if(color=='event-all'){
   $('p').css('display','block');
 }else{
   $('p').css('display','none');
   $('p.'+color.replace('event-','')).css('display','block');
 }
}

Answer 6

function showEvents(color){
    $(p["class^='event-'"]).each(function() {
       if(!this.hasClass(color))this.hide();//or .css(display:none;)
       else {this.show()};
})

I think this should be a solution if I understood your question correctly. Fj