JSFiddle - React, Tailwind, and code Playground

HTML

<form action="" method="post">
        <input type="text" class="test" />
        <input type="text" class="test" />
            <input type="text" class="test"  />
        <input type="text" class="test" />
        <input type="text" class="test" />
    </form>

JavaScript

('.test').keyup(function(e) {
						if (e.keyCode == 13) {
						    $(this).attr('readonly', true);
						}
});