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Discussion on: Building a Single Page App without frameworks 🔥

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Michael Currin

BTW In production you would use Nginx to serve your static assets (HTML and JS). Or upload them to GitHub Pages and let that serve it for you. No NPM server needed.

Using Express in production is suitable if you want to build an API or maybe do frontend templating (like Python Flask does). That you can make your content dynamic like with get data from a database. Instagram is a single application which does something like this.