Computed properties

[gr0uch]

Not sure if this is possible but worth investigating, use user-defined getter/setters in the bound data object.

var store = {}
var data = {}

Object.defineProperty(data, 'computed', {
  get: function () { return store.computed }
  set: function (x) { store.computed = x + x }
})

var node = bind(data, bindings)

Would need to use Object.getOwnPropertyDescriptor.

[gr0uch]

After trying to implement this, I realized that it is not possible, due to the setter function needing its own closure.