JSFiddle - React, Tailwind, and code Playground

by kyllle

HTML

<select name="" id="cars">
    <option></option>
    <option value="Ford">Ford</option>
    <option value="Volvo">Volvo</option>
    <option value="Saab">Saab</option>
</select>

JavaScript

console.clear();

var $cars = $('#cars'),
	carCount = cars.length - 1,
    isSelected = false;

$cars.on('change', function() {
    
    if($cars.val() === '') {
		++carCount; //only want this to run if less than 3
    } else {
        if(isSelected) {
        	--carCount;
        } else {
            carCount;
        }
    }
    
    console.log('Car count', carCount);
    
});