JavaScript's Map and WeakMap data structures offer advantages over traditional objects, particularly with non-string keys, ordered insertion, and enhanced performance.
While a Map allows any data type as keys and maintains insertion order, a WeakMap's keys must be objects, providing automatic garbage collection.
Maps are iterable and provide a size property, making them more versatile for frequent operations, whereas WeakMaps enhance memory management with weak references for keys.
The ability to store any data type as keys in a Map gives developers flexibility, while the WeakMap's non-iterable nature optimizes memory for dynamic applications.
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