Web Reference: Oct 30, 2025 · The Symbol.iterator static data property represents the well-known symbol Symbol.iterator. The iterable protocol looks up this symbol for the method that returns the iterator for an object. In order for an object to be iterable, it must have a [Symbol.iterator] key. Aug 21, 2018 · I'm reading Eloquent JavaScript's "The Iterator Interface" section and I have trouble understanding why we need to define MatrixIterator function to iterate Matrix's contents. The Symbol.iterator property in JavaScript is a powerful feature that enables seamless iteration over various data structures. By understanding its fundamental concepts, usage methods, common practices, and best practices, you can write more efficient and elegant code.
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