Iteration
The tavern master makes a point of greeting each patron, as it is good business to do so. Lists include built-in support for a variety of functions that allow you to perform an action for each element of their contents. This concept is called iteration.
One way to iterate through a list is a for loop.
Its logic is, “for each element in the list, do something.”
You give the element a name, and the Kotlin compiler will automatically detect its type for you.
Update Tavern.kt to print a greeting for each patron. (Also, remove the code from earlier that modifies and prints patrons to tidy up your console output.)
Listing 9.15 Iterating over the patrons with for (Tavern.kt)
... fun visitTavern() { narrate("$heroName ...Get Kotlin Programming: The Big Nerd Ranch Guide, 2nd Edition now with the O’Reilly learning platform.
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