iteragain/dist/esm/internal/TeedIterator.js

Javascript Iterable/Iterator/Generator-function utilities.

export class TeedIterator {
    constructor(i, seekable, indices) {
        this.i = i;
        this.seekable = seekable;
        this.indices = indices;
    }
    [Symbol.iterator]() {
        return this;
    }
    next() {
        const index = this.indices[this.i];
        this.seekable.seek(index + 1);
        if (index >= this.seekable.elements.length)
            return { done: true, value: undefined };
        this.indices[this.i]++;
        return { done: false, value: this.seekable.elements[index] };
    }
}
export default TeedIterator;
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