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Type conversions

Context

Go does not have implicit type conversions. You must explicitly convert values using T(v), where T is the target type and v is the value.

Example

Convert between different numeric types and between string and byte slice.

Code example

package main

import "fmt"

func main() {
    var a int = 42
    var b float64 = float64(a)
    var c uint = uint(a)

    fmt.Println(a, b, c)

    // String to byte slice
    s := "hello"
    bs := []byte(s)
    fmt.Println(bs)

    // Byte slice to string
    s2 := string(bs)
    fmt.Println(s2)
}

Output

42 42 42
[104 101 108 108 111]
hello

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