html - Display image from directory using jQuery? -

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i'm learning basics of web development, 1 thing haven't encountered solution yet getting image directory using jquery. if have checkbox defined follows... 

<input id="check" type="checkbox">

... how can image directory, , display in <div> based on current state of checkbox (without messing html)? i've found far this, showing existing contents of <div>, correct?

$(document).ready(function(){     $('#check').click(function(){         if(!$(this).is(':checked')){             ("div").show();         }     }); });

the reason don't want touch html want gain more in-depth understanding of more powerful functions of jquery (i don't want build bad habits), proving difficult thing on own. i'd appreciate (or hints)!

tl;dr: checked box = image, unchecked = no image. jquery because of reasons.

you can(assuming div present)

$(document).ready(function () {     //create reference div can reused later     var $div = $('div'),         $img;     $('#check').change(function () {         //set display status of div based on checked state of checkbox         $div.toggle(this.checked);         if (this.checked) {             //if checked , img not present create 1             if (!$img) {                 $img = $('<img />', {                     src: '//placehold.it/64/00ff00'                 }).appendto($div);             }         }     }); });

demo: fiddle


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