Filter filters values from a slice using a filter function.

Includes - given a slice of type T and a value of type T, determines whether the value is contained by the slice.

Map turns a []T1 to a []T2 using a mapping function.

Merge - receives slices of type T and merges them into a single slice of type T.

Reduce reduces a []T1 to a single value using a reduction function.

// Sort - sorts given a slice of any orderable type T The constraints.Ordered constraint in the Sort() function guarantees that the function can sort values of any type supporting the operators <, <=, >=, >.