JSFiddle - React, Tailwind, and code Playground

HTML

<select><option value='1' selected>1</option></select>
<select><option value='1' selected>1</option></select>

JavaScript

$(function () {
    $('body').append('<br>' + $('select').is('[value=1]'));      // Multiple selects, returns true
    $('body').append('<br>' + $('select').eq(0).is('[value=1]'));// Single select, returns false
}());