Sorry, I meant not extending but inherit. You can inherit from object literals by just creating new object based on your original one, like here. In singleton pattern, once you create the instance, it cannot be inherited in any way, because any ancestors will link to the original one.
Sorry again for confusion, lack of sleep has really got me this time :D
That's not what I would define as inheriting, you're cloning the object and adding extra properties to the clone. Nothing prevents anyone from cloning your singleton instance either, though, as long as they remember to carry on the prototype.
You are completely right, but here you are stepping away from the merit of the text, which is singleton design pattern. In JavaScript all (or are there some that aren't?) reference types can be cloned and those cloned modified.
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This is a design pattern (object literal is also one, more specific to the JS). Difference is for example that literal can be extended.
In which way can you extend an object literal that you cannot extend your singleton object?
Sorry, I meant not extending but inherit. You can inherit from object literals by just creating new object based on your original one, like here. In singleton pattern, once you create the instance, it cannot be inherited in any way, because any ancestors will link to the original one.
Sorry again for confusion, lack of sleep has really got me this time :D
That's not what I would define as inheriting, you're cloning the object and adding extra properties to the clone. Nothing prevents anyone from cloning your singleton instance either, though, as long as they remember to carry on the prototype.
You are completely right, but here you are stepping away from the merit of the text, which is singleton design pattern. In JavaScript all (or are there some that aren't?) reference types can be cloned and those cloned modified.