# Lists

## Accessing element in list through index:​

[1, 2, 3] !! 2 --- 3

head [1, 2, 3]--- 1tail [1, 2, 3]--- 2, 3last [1, 2, 3]--- 3

## null, length​

null [1, 2, 3]--- False null []--- True length [1, 2, 3]--- 3

## Range​

[1, 2..10]---[1,2,3,4,5,6,7,8,9,10][0.1, 0.2..1]-- [0.1,0.2,0.30000000000000004,0.4,0.5,0.6,0.7000000000000001,0.8,0.9,1.0]

This works even with chars:

['A' .. 'Z']--- "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

## elem​

This function receives a value and a list and returns if the value is an element of the list.

1 elem[1, 2, 3]--- True

## cycle​

With cycle, we can create a list that repeats its content for ever - we receive an infitite list. For example, [1, 2] would be turned into [1, 2, 1, 2, 1, 2 ... and so on.

To cut the list which turns the infinite list cycle creates into an ending one:

take 10 (cycle[1, 2]) ---[1,2,1,2,1,2,1,2,1,2]

The parameter "take" receives is the length of the list that should be generated.

## repeat​

It does what it suggests.

While generate an infitite list consisting only of 5's:

repeat 5

To make it a fixed size: (10 times 5):

take 10 (repeat 5)