javascript - Accessing HTML attributes inside Listener Function -


i'm trying access custom html attribute within function attached event listener far have been unable work. i'm not sure how correctly reference target element.

currently have:

<td id= "kayak1" data-picid="1"><img src= "thumbnail.jpg"></td>

a listener:

var cat1 = document.getelementbyid("kayak1"); cat1.addeventlistener("dblclick", showcatpix);

and function:

function showcatpix () {     var picselect = this.getattribute("data-picid");     switch(picselect) {         case 1:             var catpix = document.getelementbyid("showcatpics");             catpix.src ="cat_kayak.jpg";             break;     } }

the event calling function correctly showcatpix isn't accessing picid attribute , nothing being displayed. tried using this.dataset.picid. didn't work either. tips on how correctly reference property great.

the picselect retrieved dom attribute string "1", while in switch statement comparing number 1. , switch/case === comparison.

using this not issue, should work.


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