JSFiddle - React, Tailwind, and code Playground

HTML

<form action="">
		<select name="brand" id="brand">
			
					<option></option>
			<option value="acura">Acura</option>
		</select>
		<select name="model" id="model">
			
		</select>
	</form>

JavaScript

var Auto, acura, brand;

		Auto = function(brands){
			this.brands = brands || [];

		};
		acura = new Auto(['MDX', 'RDX', 'TL', 'TSX', 'ZDX']);

	jQuery(document).ready(function($){

		$('#brand').change(function(){

			var currentBrand = $('#brand').val();
			alert(currentBrand.brands);
            alert(acura.brands);
		});



		
	});