Tombarr

map = %{
  :red => "blue",
  1 => 2,
  true => false
}

map[true] # false
map[:red] # "blue"

Tombarr

[1, 2, 3, 4, 5].map((x) => x * x).reduce((x, s) => x + s); // 55

Tombarr

[1, 2, 3, 4, 5]
  |> Enum.map(fn x -> x * x end)
  |> Enum.reduce(fn x, s -> x + s end) # 55

Tombarr

arr = [1, 2, 3, 4, 5]
arr_sqrd = Enum.map(arr, fn x -> x * x end)
arr_sqrd_sum = Enum.reduce(arr_sqrd, fn x, s -> x + s end)

Tombarr

if (condition) {
  
} else if (otherCondition) {
  
} else {
  
}

Tombarr

if condition do

else

end

Tombarr

cond do
  x > y -> "x is larger"
  x < y -> "x is smaller"
  x == y -> "x and y are equal"
  true -> "this is always true"
end

Tombarr

unless condition do
  # occurs when condition is false
end

if not condition do
  # same as if not
end

Tombarr

switch (new Date().getDay()) {
  case 0:
    return "Sunday";
  case 1:
    return "Monday";
  default:
    return "Some other day...";
}

Tombarr

case (Date.utc_today |> Date.day_of_week) do
  0 -> "Sunday"
  1 -> "Monday"
  _ -> "Some other day..."
end