Lists

Important list-related functions include:

Function	Use
drop	Remove values from the start of a list
isEmpty	Check if a list is empty
len	Get the length of a list
push	Add a value to the end of a list
range	Get a list of integers up to a value
reverse	Reverse a list
sort	Sort a list in ascending order
sortDesc	Sort a list in descending order
span	Get a list of integers between two values
take	Get values from the front of a list

See the standard library List module for more built-in functions for working with lists.

states = ["CT", "MA", "ME", "NH", "RI", "VT"]

states =
["CT", "MA", "ME", "NH", "RI", "VT"]

states[0]
states[1]

"CT"
"MA"

states[-1]
states[-2]

"VT"
"RI"

states[1] = "Massocheichei"
states[-1] += "!"

states =
["CT", "Massocheichei", "ME", "NH", "RI", "VT!"]

Map Operator

["Jan", "Feb", "Mar", "Apr", "May", "June"] $ Str.toUpper
span(0, 10) $ 2 ** arg

["JAN", "FEB", "MAR", "APR", "MAY", "JUNE"]
[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]

["Jan", "Feb", "Mar", "Apr", "May", "June"] ? Str.startsWith("J")
span(0, 10) ? Math.isOdd

["Jan", "June"]
[1, 3, 5, 7, 9]

["Jan", "Feb", "Mar"] + ["Apr", "May", "June"]

["Jan", "Feb", "Mar", "Apr", "May", "June"]

[0] * 5
["do", "re", "mi"] * 2

[0, 0, 0, 0, 0]
["do", "re", "mi", "do", "re", "mi"]