README ¶ Exercise 5.9 (P135) Write a function expand(s string, f func(string) string) string that replaces each substring "$foo" within s by the text returned by f("foo"). Expand ▾ Collapse ▴ Documentation ¶ There is no documentation for this package. Source Files ¶ View all Source files main.go Click to show internal directories. Click to hide internal directories.