JSFiddle - React, Tailwind, and code Playground

HTML

<p>
    Just finished writing a #jQuery to #AngularJS comparison and migration walkthrough for @airpair! by fion
</p>

JavaScript

(function ($) {
    var link = '<a href="http://airstream.com/$1">$1</a>',
        list = [/\B(@[\w]*)/g, /\B(#[\w]*)/g];
    $.fn.autolink = function () {
        return this.each(function () {
            var elm = $(this);
            $.each(list, function (i, regex) {
                elm.html(elm.html().replace(regex, link));
            });
        });
    };
})(jQuery);

$('p').autolink();