# Pipeline using pipe operator "|" and identity function "." for current input
> "hello" | length | . * 2
10

# Multiple outputs using output operator ","
> 1, 2 | . * 2
2
4

# Index array or object using .[key/index] or just .key for objects
> [1,2,3][1]
2

# Collect outputs into array using [...]
> [1,empty,2]
[1,2]

# Iterate array or object using .[]
> [[1,2,3][]]
[1,2,3]