[erlang-questions] node.js vs erlang

[Ivan Carmenates García]

Hi Joe,

 

I did try nodejs some time ago and I can tell from that experience that regards to development performance and confortable programming, nodejs is very nice, it is very intelligent way to program, it is faster too, but I have to tell you this, nodejs as a program language is very close or even more nicely than Erlang, but as a technology it is the biggest crap I ever taste, sorry about that, everything there explode and you have no control at all of the explodes, if the stack ran out; and it does quickly and easily, it just ran out without any possible solution and the system goes down inevitably, I came out to think that you cannot program a serious thing over that! Despite of that simple fact, all other is fine, nicely coding programming I think.

 

Best regards,

Ivan.

 

 

 

De: erlang-questions-bounces@REDACTED [mailto:erlang-questions-bounces@REDACTED] En nombre de Joe Armstrong
Enviado el: lunes, 16 de junio de 2014 10:22 a.m.
Para: Erlang
Asunto: [erlang-questions] node.js vs erlang

 

I'm trying to compare node.js with erlang. I'm a total node.js novice BTW - but I've written some JS.

 

Program 1 is just fibonacci - I want a web server to compute fib(N)

 

So requesting http://127.0.0.1:8124/fib?n=2 should compute and return fib(2)

 

My node.js attempt crashes

Here's the code in fib.js

 

--- fib.js

 

var http = require('http');

var url  = require('url');

 

function fib(n) {

  if (n < 2) {

    return 1;

  } else {

    return fib(n - 2) + fib(n - 1);

  }

}

 

http.createServer(function (req, res) {

    var q = url.parse(req.url, true).query;

    var n = q.n;

    var result = fib(n);

    console.log('fib('+ n + ')= '+result);

    res.writeHead(200, {'Content-Type': 'text/plain'});

    res.end(result.toString());

}).listen(8124, "127.0.0.1");

 

console.log('Server running at http://127.0.0.1:8124/');

 

-- end

 

-- now we run it

 

$ node fib.js

Server running at http://127.0.0.1:8124/

fib(2)= 2

 

/home/ejoearm/Dropbox/experiments/hello_world/fib.js:5

function fib(n) {

            ^

RangeError: Maximum call stack size exceeded

 

fib(2) has run out of stack space????

 

$ node --version

v0.8.21

 

Any ideas what I'm doing wrong

 

Cheers

 

/Joe

 

 

 

 

 

 

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