JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://jqueryjs.googlecode.com/svn-history/r6125/trunk/plugins/cookie/jquery.cookie.js"></script>
<input name='itens[0][valorCotado]'
data-qtd='5' value='0' >
<input name='itens[1][valorCotado]'
data-qtd='5' value='0' >
<input name='itens[2][valorCotado]'
data-qtd='5' value='0' >
<input name='itens[3][valorCotado]'
data-qtd='5' value='0' >

JavaScript

jQuery('[name*="[valorCotado]"]').change(function() {
	console.log(jQuery(this).attr('name'));
});