Iterating through a golang map

Question

I have a map of type  map string interface    And finally  I get to create something like  after deserializing from a yml file using goyaml   mymap   map foo map first  1  boo  map second  2     How can I iterate through this map  I tried the following   for k  v    range mymap          But I get an error   cannot range over mymap typechecking loop involving for loop   Please help

User · Accepted Answer

For example   package main  import  fmt   func main         type Map1 map string interface       type Map2 map string int     m    Map1  foo   Map2  first   1    boo   Map2  second   2         m   map foo map first  1  boo  map second  2       fmt Println  m    m      for k  v    range m           fmt Println  k    k   v    v            Output   m  map boo map second 2  foo map first 1   k  boo v  map second 2  k  foo v  map first 1

User · Answer

You could just write it out in multiline like this     cat dict go package main  import  fmt   func main             items    map string interface                     foo   map string int                           strength   10                           age   2000                                      bar   map string int                           strength   20                           age   1000                                       for key  value    range items                   fmt Println      key     has items                    for k v    range value  map string int                            fmt Println   t-- gt    k       v                                   And the output     go run dict go   foo   has items          -- gt  strength   10         -- gt  age   2000   bar   has items          -- gt  strength   20         -- gt  age   1000

User · Answer

You can make it by one line   mymap    map string interface    foo   map string interface    first   1    boo   map string interface    second   2   for k  v    range mymap       fmt Println  k    k   v    v      Output is   k  foo v  map first 1  k  boo v  map second 2

[map] Iterating through a golang map

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