object.coffee

Object.prototype.tap: (func) ->
  func.apply(this, [this])

Object.prototype.clone: ->
  ((this instanceof Array) ? [] : {}).tap (newObj) =>
    for key, val of this
      if key == 'clone'
        # no op
      else if val && typeof val == 'object'
        newObj[key] = val.clone()
      else
        newObj[key] = val
  
Object.prototype.merge: (obj) ->
  @clone().tap (newObj) ->
    for key, val of obj
      newObj[key] = val