A simple test follows:

Hello, world!

Now perform functional test:

1 2 3 4 5

Filter test:

3 4 5

Filter matches:

one two four

Filter matches 2:

one two four

Map 1:

2 4 6 8 10

Map 2:

ONE TWO THREE FOUR FIVE

Map 3:

ONE TWO THREE FOUR FIVE

Live Map 1:

6 7 8 9 10 11 12

Reduce:

one, two, three, four, five one, two, three, four, five 15 12345