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 vote361 views1 answer
Golang time comparision
Go
2 votes354 views2 answers
Go iterate over slice
Go
0 vote327 views1 answer
Colossal god of chaos
Go
0 vote331 views1 answer
How to remove element from backing array slice golang
Go
3 votes330 views1 answer
Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.20.1:test (default-test) on project upload
Go
0 vote410 views1 answer
How to execute linux command in golang
Go
0 vote295 views1 answer
How to gab the users imput
Go
10 votes326 views1 answer
How to do google search
Go
9 votes384 views2 answers
Go create list length
Go
1 vote340 views1 answer
Golang check if string is empty
Go