MJML Template String 
A simple yet powerful module to allow you to use ES6 tagged template strings for rendering (generating HTML) of MJML email templates using dynamic substitutions, etc. Module takes care of automatic escaping/converting variables for HTML. So, something as crazy as below works just fine:
const mjml = require('tag-mjml')({ beautify: true });
const companyName = chalk`
I love
My 🤘🏻 < {keyword('orange').bold Company}`;
const textSize = 62;
const htmlResult = mjml`
<mjml>
<mj-body>
<!-- Company Header -->
<mj-section background-color="#f0f0f0">
<mj-column>
<mj-text
font-family="inherit"
font-style="italic"
font-size="${textSize}px"
color="#626262"
>
${companyName}
</mj-text>
</mj-column>
</mj-section>
</mj-body>
</mjml>
`;and renders to nice HTML like this:
<!DOCTYPE html>
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:v="urn:schemas-microsoft-com:vml"
xmlns:o="urn:schemas-microsoft-com:office:office"
>
<!-- ... -->
<div
style="font-family:inherit;font-size:62px;font-style:italic;line-height:1;text-align:left;color:#626262;"
>
I love my
<br />
My 🤘🏻 <
<span style="color:#ffa500">
<b>
Company
</b>
</span>
</div>
<!-- ... -->
</html>So, now you don't need to repass MJML with Handlebars, etc, to have dynamic data binding.
Written in Typescript with 100% test coverage.