[erlang-questions] node.js vs erlang

[Joe Armstrong]

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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