In iBook App Development with Swift's guided Project Restaurant(chapter 5, page 837)>> Build and run your app with the server running. You should see a list of the categories that you defined back in menu.json.Problem :Nothing appears on the table view controllerEnter http://localhost:8090/categories into the browser, but the server returns nothing.server response: { "categories" : [ ] }
pegasusroe
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Does anyone know where to find more detailed information about "String interpolation with a specifier/formatter"?
I know we can use string interpolation to format a number:
let pi = Double.pi
"\(pi, specifier: "%.2f")"
but I can't find any further information about this syntax, please help.
Does anyone know that?