You don't have to be worried about XSS becouse val() doesn't couse XSS

Best

That's working. But how to prevent XSS as tag input e.g.: alert('Hi');

Here I am going to explain how to add chips dynamically.

Add the below line in your html.

 <div class="chips chips-initial"></div>

Add below code into JS function.

var s = "your_input";
var e = jQuery.Event("keydown");
e.which = 13; // # Some key code value
$(".chips-initial input").val(s);
$(".chips-initial input").trigger(e);
$('.chips').material_chip();

Note:Pass Your input into variable s;