added result.Uint() function resolves #9

README.md

@@ -119,6 +119,7 @@ There are a variety of handy functions that work on a result:
 ```go
 result.Value() interface{}
 result.Int() int64
+result.Uint() uint64
 result.Float() float64
 result.String() string
 result.Bool() bool

gjson.go

@@ -108,6 +108,21 @@ func (t Result) Int() int64 {
 	}
 }
 
+// Uint returns an unsigned integer representation.
+func (t Result) Uint() uint64 {
+	switch t.Type {
+	default:
+		return 0
+	case True:
+		return 1
+	case String:
+		n, _ := strconv.ParseUint(t.Str, 10, 64)
+		return n
+	case Number:
+		return uint64(t.Num)
+	}
+}
+
 // Float returns an float64 representation.
 func (t Result) Float() float64 {
 	switch t.Type {