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[js] show/hide 이벤트 감시 (Observing show/hide event)

by hooni posted Feb 03, 2021
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Observing show/hide events with jQuery.


HTML Code

<button id="btnShow">Show</button> <button id="btnHide">Hide</button> <div class="container"> <div id="foo"> I am #foo </div> </div> <div id="console"> </div>

CSS Code

.container { height:60px; margin:10px; } #foo { background-color:#eeeeee; width:150px; height:50px; text-align:center; font-size:20px; }

JQuery Code

//The magic code to add show/hide custom event triggers (function ($) { $.each(['show', 'hide'], function (i, ev) { var el = $.fn[ev]; $.fn[ev] = function () { this.trigger(ev); return el.apply(this, arguments); }; }); })(jQuery); //on Show button click; show the #foo div $('#btnShow').click(function(){ $('#foo').show(); }); //on Hide button click; hide the #foo div $('#btnHide').click(function(){ $('#foo').hide(); }); //Add custom handler on show event and print message $('#foo').on('show', function(){ $('#console').html( $('#console').html() + '#foo is now visible'+ '<br>' ) }); //Add custom handler on hide event and print message $('#foo').on('hide', function(){ $('#console').html( $('#console').html() + '#foo is hidden'+ '<br>' ) });


[출처] https://www.viralpatel.net/jquery-trigger-custom-event-show-hide-element/