chapter5/

The instructor of the linear algebra course decids that calculus is now a prerequisite.

Write variadic funcions max and minx, analogous to sum.

Write a variadic version of strings.Join

Without changing its behaviour rewrite the fetch function to use defer to close the writable file.

Use panic and recover to write a function that contains no return statement yet return a non-zero value.

Write a function to print the contents of all text nodes in an HTML document tree.

Implement countWordsAndImages (see exercise 4.9 for word-splitting)

Develop startElement and endElement into a general HTML pretty printer.

Modify forEachNode so that the pre and post functions return a boolean result indicating whether to continue the traversal.

Write a function expand(s string, f func(string) string) string that replaces each substring "$foo" withing s by the text returned by f("foo").