How to Convert Hexadecimal to Integer In Elixir?

In Elixir, you can convert a hexadecimal string to an integer using the String.to_integer/1 function and specifying the base as 16.

Here's an example:

1
2
3

hex_str = "1F"
integer = String.to_integer(hex_str, 16)
IO.puts(integer) # Output: 31

In the example above, the hexadecimal string "1F" is converted to an integer with a value of 31.

How to convert hexadecimal fractions to integers in Elixir?

To convert hexadecimal fractions to integers in Elixir, you can use the String module to parse the hexadecimal fraction, convert it to a float, and then convert the float to an integer. Here's an example code snippet to demonstrate this conversion:

1
2
3
4
5
6

hex_fraction = "0x1.8"
decimal_fraction = String.to_float(hex_fraction)
integer_value = trunc(decimal_fraction)

IO.puts("Hexadecimal Fraction: #{hex_fraction}")
IO.puts("Integer Value: #{integer_value}")

In this example, the hexadecimal fraction "0x1.8" is first converted to a float using String.to_float(). Then, the float value is converted to an integer using the trunc() function. Finally, the hexadecimal fraction and the integer value are printed to the console.

You can adjust the input hexadecimal fraction string in the code to convert different hexadecimal fractions to integers.

What is the best practice for converting hexadecimal to integers in Elixir?

One common way to convert hexadecimal to integers in Elixir is to use the built-in String.to_integer/1 function with base 16 specified as the second argument. For example:

1
2
3

hex = "1A"
integer = String.to_integer(hex, 16)
IO.inspect(integer)  # Output: 26

Another approach is to use the :binary.decode_unsigned/1 function from the :erlang module:

1
2
3

hex = <<1, 10, 255>>
integer = :erlang.binary_to_integer(hex)
IO.inspect(integer)  # Output: 26623

Both of these methods are valid options for converting hexadecimal values to integers in Elixir, and the choice between them may depend on the specific requirements of your use case.

How to represent hexadecimal values as integers in Elixir?

In Elixir, you can represent hexadecimal values as integers by using the <<>> syntax. Here's an example:

1
2
3
4
5

hex_value = <<16#FF>>  # represents hexadecimal value FF
integer_value = <<16#FF>> |> :binary.decode_unsigned()  # converts hexadecimal value FF to an integer

IO.puts(hex_value)  # prints 255
IO.puts(integer_value)  # prints 255

In this example, 16# is used to specify that the following characters represent a hexadecimal value. The :binary.decode_unsigned() function is then used to convert the hexadecimal value to an integer.

What is the data type of the integer obtained from converting a hexadecimal value in Elixir?

The data type of the integer obtained from converting a hexadecimal value in Elixir is an integer data type.