Golang map

Initialize map in golang

// By default maps in Go behaves like a default dictionary in python
m := make(map[string]int)

m["Dio"] = 3
m["Jonathan"] = 1

Go remove from map

m := map[string]string{"key1": "val1", "key2": "val2"}
delete(m, "key1")

Go add to map

m := make(map[string]int)
m["numberOne"] = 1
m["numberTwo"] = 2

Golang map

//map in go is a built in type implementaiton of has table
//create an empty map
myMap := make(map[string]string)
//insert key-value pair in map
myMap["key"] = "value"
//read from map
value, ok := myMap["key"]
//delete from map
delete(myMap, "key")

Go get from map

var id string
var ok bool
if x, found := res["strID"]; found {
     if id, ok = x.(string); !ok {
        //do whatever you want to handle errors - this means this wasn't a string
     }
} else {
   //handle error - the map didn't contain this key
}

Source: stackoverflow.com

Golang map

myMap := make(map[(key type)](value type))

Similar codes

0 vote130 views1 answer
Linked list by address c
C
0 vote146 views1 answer
Python adding calculator
C
0 vote139 views1 answer
Can torch light bring change in chemical reaction
C
0 vote130 views1 answer
Djb2 algorithm for C
C
0 vote130 views2 answers
Command line arguments c
C
3 votes159 views2 answers
MongoDb Create
C
6 votes127 views2 answers
Atoi
C
3 votes140 views1 answer
Union in C
C
0 vote220 views1 answer
Redis Endpoint
C
0 vote146 views1 answer
Gtk widget change window title
C