Erlang day1

Erlang day1:

  1. Erlang shell an introduction
  2. How to use the erlang shell?
  3. few basic data structure tricks

Erlang shell an introduction:

In order to get your erlang shell,you have to install the erlang OTP for your platform(Windows/Linux).
Once installed erlang software, you can type erl to launch the shell.
In erl you can do the experiments in erlang.

watch the screen & read the below marks:

erl day 1

Few things keep remember:

The new values can’t be assigned to the bounded varialbes.Use always a unbound variable to store the value.Varialbes starts with caps(i.e Var).
_ is always used to unregister the value.The value will be omitted if it is assigned to the underscore.

Data structures are atoms, tuple, list.

  • tuple: It is represented by {}. e.g {1,2,3,4}.
  • atom: This is just a variable which is used name the data to match the pattern.
    eg.  {person, Name} = {person, "navaneethan"}.

    in this above example two tuples are matched with help of atom person, so the variable Name will be bounded to the value navaneethan.Finally, this pattern match is successful.

  • list: []
    e.g: [1,2,3,4].

Few weird things with tuples and lists:

  • Two tuples are compared with the no of elements on each tuple.
  • Two lists are compared with Dictionary associate property.

About Navaneethan

mixed feelings...
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One Response to Erlang day1

  1. DhilipSiva says:

    You have an interesting blog 🙂

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