Is there a complete REPL for Erlang?

Question

Is there a way to have a full interpreter in Erlang, and not just a "shell".

Since this is a dynamic language, the inability to define named functions in the interpreter is a little disappointing ... I suspect that this is because compilation modules (modules) must be explicitly compiled to execute them by VM, but there may be a REPL acting as dynamic / recompiled module?

Answer 1

This is due to the definition of erlang functions in the shell

Short answer:

• Use funs

Longer answer:

• http://ulf.wiger.net/weblog/2007/11/20/extending-the-erlang-shell-part-1/
• http://ulf.wiger.net/weblog/2007/11/21/extending-the-erlang-shell-part-2/
• http://erldocs.com/R13B04/stdlib/shell_default.html

Answer 2

F = fun() → io: format ( "Hello World ~ n", []) end.

F().

Answer 3

, , .

Erlang VM . , , , , , . , , lisp. , , , . "shell-", . erlang.

And to be honest, I see no reason that recompiling and reloading the code has always been so fast that it was not a problem. It will be more a habit than a convenience.