When do we need & in golang

var a = 5
var p = &a // p holds variable a's memory address
fmt.Printf("Address of var a: %p\n", p)
fmt.Printf("Value of var a: %v\n", *p)

// Let's change a value (using the initial variable or the pointer)
*p = 3 // using pointer
a = 3 // using initial var

fmt.Printf("Address of var a: %p\n", p)
fmt.Printf("Value of var a: %v\n", *p)

Source: stackoverflow.com

Similar codes

3 votes154 views1 answer
How to set logo for website
Go
0 vote159 views1 answer
Google pay rewrite in flutter
Go
0 vote169 views1 answer
How to execute linux command in golang
Go
4 votes155 views1 answer
Mongo db show datbae
Go
0 vote153 views1 answer
On click goto mail
Go
0 vote155 views1 answer
Search google or type a url
Go
0 vote102 views1 answer
Golang ecb aes
Go
0 vote157 views1 answer
Gorm array type data postgres
Go
0 vote142 views1 answer
Golang type enum
Go
0 vote153 views1 answer
Brew mongo start
Go