_print

Print to console

Prints stream elements in a table like structure

Tuples, case classes, products, and Able.Doc object properties are formatted as table columns

('A' <> 'F').stream.map(v => (v.Int, v)).print

// Output
-- --
_1 _2
-- --
65 A
66 B
67 C
68 D
69 E
70 F
-- --

// -----------------------------------------------------
case class Case(int: Int, name: String, odd: Boolean):
    def this(i: Int) = this(i, "Name"+i, i%2==0)

(1 <> 10).stream.map(new Case(_)).print

// Output
--- ------ -----
int name   odd
--- ------ -----
1   Name1  false
2   Name2  true
3   Name3  false
4   Name4  true
5   Name5  false
6   Name6  true
7   Name7  false
8   Name8  true
9   Name9  false
10  Name10 true
--- ------ -----

Print to console with rows numbered

Same as regular print, but with added row number as first column

('A' <> 'F').stream.map(v => (v.Int, v)).print_#

// Output
-- -- --
#  _1 _2
-- -- --
0  65 A
1  66 B
2  67 C
3  68 D
4  69 E
5  70 F
-- -- --

Note: Number is mostly usefull for longer or even infinite streams

Print to console with row id

Same as regular print, but with added first column identifying the object

('A' <> 'F').stream.map(v => (v.Int, v)).print

// Output
----------------- -- --
Id                _1 _2
----------------- -- --
scala.Tuple2@dzkr 65 A
scala.Tuple2@zn1  66 B
scala.Tuple2@71j3 67 C
scala.Tuple2@562u 68 D
scala.Tuple2@c8tt 69 E
scala.Tuple2@p0m8 70 F
----------------- -- --