To concatenate char lists in Elixir, you can use the <>
operator. This operator is used to concatenate two char lists together, similar to how the +
operator is used to concatenate strings in other languages. Here is an example of how you can concatenate char lists in Elixir:
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list1 = 'hello' list2 = 'world' concatenated_list = list1 <> list2 IO.inspect(concatenated_list) |
In this example, the char lists 'hello'
and 'world'
are concatenated together using the <>
operator, resulting in the char list 'helloworld'
.
What is the concat function in Elixir?
The concat
function in Elixir is used to concatenate two lists or strings together. It takes two arguments, both of which can be lists or strings, and returns a new list or string that is the result of appending the second argument to the end of the first argument.
Here is an example of using the concat
function to concatenate two lists:
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list1 = [1, 2, 3] list2 = [4, 5, 6] result = List.concat(list1, list2) IO.inspect(result) # [1, 2, 3, 4, 5, 6] |
And here is an example of using the concat
function to concatenate two strings:
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string1 = "Hello, " string2 = "world!" result = String.concat(string1, string2) IO.inspect(result) # "Hello, world!" |
The concat
function is a convenient way to combine two lists or strings into a single entity.
How to append elements in Elixir?
In Elixir, you can append elements to a list using the ++
operator. Here is an example of how you can append an element to a list:
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list = [1, 2, 3] new_element = 4 new_list = list ++ [new_element] IO.inspect(new_list) |
This will output [1, 2, 3, 4]
, as the new_element
has been appended to the original list.
How to concatenate nested lists in Elixir?
You can concatenate nested lists in Elixir using the ++
operator and list comprehension. Here's an example:
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list1 = [1, 2, [3, 4], 5] list2 = [6, [7, 8], 9] concatenated_list = [for sublist <- list1, do: sublist] ++ [for sublist <- list2, do: sublist] IO.inspect(concatenated_list) |
In this example, list1
and list2
are the nested lists that we want to concatenate. We use list comprehensions to iterate over each sublist in list1
and list2
, and then use the ++
operator to concatenate all the elements together into a single list called concatenated_list
.
When you run this code, it will output [1, 2, [3, 4], 5, 6, [7, 8], 9]
, which is the concatenated list containing all the elements from the nested lists in list1
and list2
.