Answers for "golang '' mean"

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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: %pn", p)
fmt.Printf("Value of var a: %vn", *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: %pn", p)
fmt.Printf("Value of var a: %vn", *p)

Posted by: Guest on May-20-2020

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