JSFiddle - React, Tailwind, and code Playground
HTML
<span class="a">One</span>
<span class="a">Two</span>
<span class="a">Three</span>
<span class="a">Four</span>
JavaScript
var a = 'Function', b = 'works';
$('.a').each(foo.bind(this, a + 'foo', b + 'foo'));
function foo(a, b, i, el) {
console.log(a, b, $(el).text());
}