Programming Phoenix LiveView:

Title: Programming Phoenix LiveView: Interactive Elixir Web Programming Without Writing Any JavaScript (page 101)

Outermost box of the diagram at the bottom of the page should be Live view: index.html.heex not index.html.leex

@clue there’s a significant update to the book releasing soon that updates the code to Phoenix 1.7 and LiveView 0.18 … as such all of the code you see in the B8 and earlier versions is outdated and now incorrect.