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 vote274 views1 answer
Hostbuilder add environment variables
C
0 vote206 views1 answer
Change no_turbo
C
3 votes194 views2 answers
Fread
C
0 vote201 views2 answers
C float to string
C
0 vote191 views1 answer
Code for qsort in C with swap
C
0 vote235 views1 answer
Strlen stop before '\0' or at
C
0 vote200 views1 answer
Opération bit à bit c
C
6 votes208 views6 answers
MongoDb
C
22 votes241 views2 answers
How to combine strings in c
C
0 vote211 views1 answer
Pop and push shows black screen which needs to be pressed back flutter
C