JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" value="test" />
<input type="text" value="test value" />
<input type="text" value="test value test" />
<input type="text" value="test value testsadfasdfasdfadsfadfd" />

JavaScript

$.each($('input'), function(){
    $(this).css('width',(($(this).val().length) * 6 + 'px'));
});