s := []byte("a,b,c,d")
	for part := range bytes.SplitAfterSeq(s, []byte(",")) {
		fmt.Printf("%q\n", part)
	}

	// Output:
	// "a,"
	// "b,"
	// "c,"
	// "d"
}

func ExampleFieldsSeq() {
	text := []byte("The quick brown fox")
	fmt.Println("Split byte slice into fields:")
	for word := range bytes.FieldsSeq(text) {
		fmt.Printf("%q\n", word)
	}