Optional arguments in JS

gistfile1.js

Reversi.prototype.getNewCell = function (row, col) {

    var cell = { 'row': 0, 'col': 0 };

    if (undefined !== row) {
        cell.row = parseInt(row);
    }

    if (undefined !== col) {
        cell.col = parseInt(col);
    }

    return cell;
};

class Reversi
  getNewCell: (row = 0, col = 0) ->
    { 'row': parseInt(row), 'col': parseInt(col) }

Reversi::getNewCell = (row, col) -> row: ~~row, col: ~~col

how do you get the coloring? :/

also, what is ~~ ?

NEVERMIND (bitwise not applied two times)

but the fact that ~undefined == -1 is... disturbing.

@n1k0 nice but unreadable :)

@arnaudlimbourg you get used to it :)
@ubermuda comme ça:

```coffeescript
foo = 42
```