JAVASCRIPT

jquery multiple ids same function

 $('body').on('click', '#element1, #element2, #element3', function () {
 console.log('Hello Developers');
 })
 
 //HTML
 
<button id="element1">Element1</button>
<button id="element2">Element2</button>
<button id="element3">Element3</button>

select multiple id in jquery

$("#upload_link,#upload_link2,#upload_link3").upload(function(){ });

multiple elements with same id jquery

<div id="x1">A</div>
<div id="x1">B</div>
<div id="x2">C</div>

<script>
	console.log($('[id="x1"]'));
</script>