Is it possible to interpret this in TypeScript?

I need assistance in understanding the following Code snippet. Can someone guide me through it?

[Symbol.iterator](): IterableIterator<IPv4> {
      return this;
  }

Answer №1

Utilizing this specific signature enables you to iterate through an object using a for..of loop or spread operation. Check out the following example:

class MyCustomIterable<T> {
  [Symbol.iterator](): IterableIterator<T> { // Representing "T"
    return [][Symbol.iterator]();
  }
}

const customIterator = new MyCustomIterable<number>(); // In this scenario, it's "number"

for (const bar of customIterator) { // Specifying the type for "bar"

  // Perform operations on a variable of type T ("number")

}

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