JSFiddle - React, Tailwind, and code Playground

HTML

<input type="checkbox" name="chb" class="optionChk" value="check me" checked="checked">
<input type="submit" name="submit" value="submit">

JavaScript

$(".optionChk").on("change", function () {
    if ($(this).is(":checked")) {
        $("input[type=submit]").removeAttr("disabled");
    } else {
        $("input[type=submit]").attr("disabled", "disabled");
    }    
});