fmt.Println(bytes.IndexByte([]byte("chicken"), byte('g')))
	// Output:
	// 4
	// -1
}

func ExampleIndexFunc() {
	f := func(c rune) bool {
		return unicode.Is(unicode.Han, c)
	}
	fmt.Println(bytes.IndexFunc([]byte("Hello, 世界"), f))
	fmt.Println(bytes.IndexFunc([]byte("Hello, world"), f))
	// Output:
	// 7
	// -1
}

func ExampleIndexAny() {

pkg unicode, var Gothic *RangeTable
pkg unicode, var GraphicRanges []*RangeTable
pkg unicode, var Greek *RangeTable
pkg unicode, var Gujarati *RangeTable
pkg unicode, var Gurmukhi *RangeTable
pkg unicode, var Han *RangeTable
pkg unicode, var Hangul *RangeTable
pkg unicode, var Hanunoo *RangeTable
pkg unicode, var Hebrew *RangeTable
pkg unicode, var Hex_Digit *RangeTable
pkg unicode, var Hiragana *RangeTable