Dotdict

In the Python version you can alternatively be more explicit and usesomething like:

  1. initials.setdefault(initial, 0)

instead of first checking if the key is there.

Note that in Go, when you set the type to be an int it automaticallysets it to 0 upon initialization.

Python

  1. initials = {}
  2. for name in ('peter', 'anders', 'bengt', 'bengtsson'):
  3.     initial = name[0]
  4.     # if initial not in initials:
  5.     #     initials[initial] = 0
  6.     initials.setdefault(initial, 0)
  7.     initials[initial] += 1
  8. print initials
  9. # outputs
  10. # {'a': 1, 'p': 1, 'b': 2}

Go

  1. package main
  2.  
  3. import "fmt"
  4.  
  5. func main() {
  6.     names := []string{"peter", "anders", "bengt", "bengtsson"}
  7.     initials := make(map[string]int)
  8.     for _, name := range names {
  9.         initial := string(name[0])
  10.         initials[initial]++
  11.     }
  12.     fmt.Println(initials)
  13.     // outputs
  14.     // map[p:1 a:1 b:2]
  15. }