Google reported on their Webmaster Central Blog today that they will be launching a new tool in the next few days to help users better understand how Google renders their JavaScript-coded website.

Chainguard, a trusted foundation for software development and deployment, is launching Chainguard Libraries for JavaScript, a collection of trusted builds of thousands of common JavaScript ...

I need to know how to use classes and containers. Specifically this part, which I do not know where to put or what the "id_of_container" should be: ...