This is a markdown-it plugin that adds "smart arrows" to markdown-it's typographic enhancements.
--> →
<-- ←
<--> ↔
==> ⇒
<== ⇐
<==> ⇔
var mdSmartArrows = require('markdown-it-smartarrows');
var md = require('markdown-it')().use(mdSmartArrows);
Note that using this plugin will interfere with using HTML comments in your Markdown.
More arrows for potential expansion can be found here: http://unicode-table.com/en/sets/arrows-symbols/
Originally developed for use with Markdown Here.