JSFiddle - React, Tailwind, and code Playground
HTML
<input name="name" type="checkbox" value="1">
<input name="name" type="checkbox" value="2">
<input name="name" type="checkbox" value="3">
<input name="name" type="checkbox" value="4">JavaScript
values = $("input[name=name]").map(function(){return $(this).val();}).get();
alert(values);