JavaScript How can I open a dropdown <select> with focus jquery event? open dropdown select jquery,open select dropdown on button click

I'm trying to open automatically a drop downdown menu when I hit the "Tab" key on the keyboard and focus my element.The focus function works, but the trigger doesn't. My intention is to force the "click" event so it opens up.

Here are my HTML examples. https://jsfiddle.net/jaelsvd/yqnoo5z9/ or also the snippet.

   $(".myTab").focus(function(){
         
      $(".myTab").trigger("click");
    });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="myTab">
    <option> Example 1 </option>
    <option> Example 2 </option>
    <option> Example 3 </option>
    <option> Example 4 </option>
    <option> Example 5 </option>
    <option> Example 6 </option>
    <option> Example 7 </option>
    <option> Example 8 </option>
    <option> Example 9 </option>
</select>
<select class="myTab">
    <option> 1 </option>
    <option> 2 </option>
    <option> 3 </option>
    <option> 4 </option>
    <option> 5 </option>
    <option> 6 </option>
    <option> 7 </option>
    <option> 8 </option>
    <option> 9 </option>
</select>
<select class="myTab" >
    <option> Jael </option>
    <option> Joe </option>
    <option> Andrea </option>
    <option> Toby </option>
    <option> Bob </option>
    <option> John </option>
    <option> Alan </option>
    <option> Mandy </option>
    <option> Melody </option>
</select>
Answer:1

click event does not open the drop down list

what you can do is change the size of the drop down list, so that it appears open

$(".myTab").focus(function(){

  $(".myTab").attr("size", 10);
});

you can later change the size to 1

Answer:2

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