Get returns the value associated with the specified key or nil.

Set inserts or replaces the specified key and value.

Human implemented fmt.Stringer

READ ABOUT INTERFACE CONVERSIONS LIKE THIS: if err, ok := result.(HTTPError) https://golang.org/doc/effective_go.html#interface_conversions

READ ABOUT INTERFACE CONVERSIONS LIKE THIS: if err, ok := result.(HTTPError) https://golang.org/doc/effective_go.html#interface_conversions

Delete deletes the specified key from the trie.

Key returns the current key

Next moves the iterator to the next key value pair in the trie

we'll learn more about interfaces later

* Let's add some delay to the function using time.Sleep and rand.Intn: */

FUNCTIONS ARE TYPES functions in go are types functions behave as types in go you can pass functions around just as you'd pass types around pass funct

use the type we had this before: func Greet(person Contact, myWassa func(string)) {

use the type we had this before: func Greet(person Contact, myWassa func(string)) {

pass in a function using your printer type

an EMPTY INTERFACE allows you to pass any type into a function/method

TYPES CAN CONTAIN METHODS & RETURN

* The function regexp.MustCompile will parse and compile the regular expression, and return a regexp.Regexp. MustCompile is distinct from Compile in t

STEP 3: a better solution is to create a func that returns a func this is also known as "a function factory"

TYPES CAN CONTAIN METHODS & RETURN

Average finds the average of a series of numbers

Len returns the number of key value pairs in the trie.

Value returns the current value

TYPES CAN CONTAIN METHODS

TYPES CAN CONTAIN METHODS

guestbookKey returns the key used for all guestbook entries.

guestbookKey returns the key used for all guestbook entries.

* This function intSeq returns another function, which we define anonymously in the body of intSeq. The returned function closes over the variable i t

printSlice is a function to print all of the elements in slice.