shelving/iterate/AbstractIterator.js

Toolkit for using data in JavaScript.

/** Abstract generator designed to be extended that implements the full generator protocol. */
export class AbstractIterator {
    throw(thrown) {
        // Default behaviour for a generator is to throw the error back out of the iterator and not continue.
        throw thrown;
    }
    return(value) {
        // Default behaviour for a generator is to return `done: true` and the input value.
        return { done: true, value };
    }
    // Implement `Iterable`
    [Symbol.iterator]() {
        return this;
    }
}