The expression T(v) converts the value v to the type T.
Unlike in C, in Go assignment between items of different type requires an explicit conversion.
```
var i int = 42
var f float64 = float64(i)
var u uint = uint(f)
```
Use strconv.Itoa to convert an int to a decimal string. In a plain conversion the value is interpreted as a Unicode code point, and the resulting string will contain the character represented by that code point, encoded in UTF-8.
```
s := strconv.Itoa(97) // s == "97"
s := string(97) // s == "a"
```