Both the Typescript and Babel compilers have excellent support for embedding XML in Javascript. This is called JSX and was motivated by the popularity of the React UI library for rendering HTML.

At the JavaOne conference this week, Laszlo Systems rolled out its new Presentation Server, a product company officials say allows developers to quickly build applications that provide a satisfying ...

He specifically compares how easy it is to use JSON in JavaScript as compared to using XML in JavaScript. For Groovy, both are easy to handle thanks to Groovy’s excellent XML and JSON support.