@reactivex/ix-esnext-esm/iterable/operators/except.js

The Interactive Extensions for JavaScript

import { IterableX } from '../iterablex';
import { arrayIndexOf } from '../../util/arrayindexof';
import { comparer as defaultComparer } from '../../util/comparer';
export class ExceptIterable extends IterableX {
    constructor(first, second, comparer) {
        super();
        this._first = first;
        this._second = second;
        this._comparer = comparer;
    }
    *[Symbol.iterator]() {
        const map = [];
        for (const secondItem of this._second) {
            map.push(secondItem);
        }
        for (const firstItem of this._first) {
            if (arrayIndexOf(map, firstItem, this._comparer) === -1) {
                map.push(firstItem);
                yield firstItem;
            }
        }
    }
}
export function except(second, comparer = defaultComparer) {
    return function exceptOperatorFunction(first) {
        return new ExceptIterable(first, second, comparer);
    };
}

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