Traditionally data analysis is done with Python or R using a custom environment. Then a subset of this work is perhaps coded into HTML dashboard for the team to look at, with its own hosting and deployment workflows.
I will show you how to do quick and easy data analysis in a browser using Observable notebooks and JavaScript. This results in readily shareable dashboards that can be viewed on any modern browser. The analysis is also interactive and explorable by default. This empowers the whole team to play with the data and derive insights. More even, anyone can easily view the code, double check the calculations, and fork a notebook to extend the analysis.