jackw/jsbin.UGEWoso.html

## jsbin.UGEWoso.html
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>

</body>
</html>

## jsbin.UGEWoso.js
function forEachIn(object, action) {
  for (var property in object) {
    if (Object.prototype.hasOwnProperty.call(object, property)) {
      action(property, object[property]);
    }
  }
}

function Dictionary (startValues) {
  this.values = startValues || {};
}
Dictionary.prototype.store = function (name, value) {
  this.values[name] = value;
};
Dictionary.prototype.lookup = function (name) {
  return this.values[name];
};
Dictionary.prototype.contains = function (name) {
  console.log(this.values);
  return Object.prototype.propertyIsEnumerable.call(this.values, name);
};
Dictionary.prototype.each = function (action) {
  forEachIn(this.values, action);
};

var colours = new Dictionary ({
  Grover : 'blu',
  Elmo : 'rosso',
  Bert: 'gialo'
});

console.log(colours.contains("Grover"));

colours.store("Ernie", "arancione");

colours.each(function (name, colour) {
  console.log(name + " è " + colour);
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset=utf-8 />
	<title>JS Bin</title>
	</head>
	<body>

	</body>
	</html>
	function forEachIn(object, action) {
	for (var property in object) {
	if (Object.prototype.hasOwnProperty.call(object, property)) {
	action(property, object[property]);
	}
	}
	}

	function Dictionary (startValues) {
	this.values = startValues \|\| {};
	}
	Dictionary.prototype.store = function (name, value) {
	this.values[name] = value;
	};
	Dictionary.prototype.lookup = function (name) {
	return this.values[name];
	};
	Dictionary.prototype.contains = function (name) {
	console.log(this.values);
	return Object.prototype.propertyIsEnumerable.call(this.values, name);
	};
	Dictionary.prototype.each = function (action) {
	forEachIn(this.values, action);
	};

	var colours = new Dictionary ({
	Grover : 'blu',
	Elmo : 'rosso',
	Bert: 'gialo'
	});

	console.log(colours.contains("Grover"));

	colours.store("Ernie", "arancione");

	colours.each(function (name, colour) {
	console.log(name + " è " + colour);
	});