defunsin Different Files
In the previous section, we created a function that returns a list of the lengths of each definition in a file. Now, we want to define a function to return a master list of the lengths of the definitions in a list of files.
Working on each of a list of files is a repetitious act, so we can use
while loop or recursion.
|• lengths-list-many-files:||Return a list of the lengths of defuns.|
|• append:||Attach one list to another.|