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How to Get A List Of All Map Keys In Elixir?

5 minutes read

To get a list of all map keys in Elixir, you can use the Map.keys/1 function. This function takes a map as an argument and returns a list of all keys in that map. You can then perform any operations you need on this list of keys.

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How to extract keys as a separate list from a map in Elixir?

You can extract keys as a separate list from a map in Elixir using the Map.keys/1 function. Here's an example:

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map = %{a: 1, b: 2, c: 3}
keys = Map.keys(map)

IO.inspect(keys) # Output: [:a, :b, :c]


In this example, we first create a map map with keys :a, :b, :c and corresponding values. We then use the Map.keys/1 function to extract the keys as a list and store them in the variable keys. Finally, we inspect the keys variable to see the output.


What is the correct way to get all keys from a map in Elixir?

In Elixir, you can get all keys from a map by using the Map.keys/1 function. Here is an example:

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map = %{a: 1, b: 2, c: 3}
keys = Map.keys(map)
IO.inspect(keys)


This will output:

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[:a, :b, :c]



What is the best way to get a list of all map keys in Elixir?

One way to get a list of all map keys in Elixir is to use the Map.keys/1 function. This function takes a map as an argument and returns a list of all keys in that map.


Here's an example:

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2
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map = %{a: 1, b: 2, c: 3}
keys = Map.keys(map)

IO.inspect(keys) # Output: [:a, :b, :c]


In this example, we have a map with keys :a, :b, and :c. We use the Map.keys/1 function to get a list of all keys in the map and store them in the keys variable. Finally, we use IO.inspect to print out the list of keys.


By using the Map.keys/1 function, you can easily get a list of all keys in a map in Elixir.


What functional programming concept is used to extract all keys from a map in Elixir?

The functional programming concept used to extract all keys from a map in Elixir is pattern matching. By pattern matching on the map, you can easily extract all keys as a list. For example:

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map = %{a: 1, b: 2, c: 3}

keys = Map.keys(map)
IO.inspect(keys) # Output: [:a, :b, :c]


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