JS Built-ins
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Prototypesbeginner

Prototypes — Object.create with null prototype

📖 Usage Example
const obj = Object.create(null);
Object.getPrototypeOf(obj); // null

Pass null to create an object with no prototype — useful for pure dictionaries.

Creating Objects Without Prototype Chain

You can create objects with Object.create(null) to create objects that have no prototype at all. This creates truly bare objects that don't even inherit from Object.prototype.

Challenge: Create a prototype-less object and understand what methods are unavailable.

💡 Hints (2)
  • • null-prototype objects are useful for storing arbitrary properties without inherited methods
  • • They do not have access to Object.prototype methods