linq-extensions/dist/lib/iterables/intersect-iterable.js

Linq-like extension methods for JavaScript and TypeScript builtin collections

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IntersectIterable = void 0;
const iterable_1 = require("../iterable");
class IntersectIterable extends iterable_1.Iterable {
    constructor(originalIterable, otherIterable, equalityCheck = (left, right) => left === right) {
        super();
        this.originalIterable = originalIterable;
        this.otherIterable = otherIterable;
        this.equalityCheck = equalityCheck;
    }
    *[Symbol.iterator]() {
        const elementsTaken = [];
        for (const element of this.originalIterable) {
            if (!elementsTaken.any(x => this.equalityCheck(x, element)) &&
                this.otherIterable.any(x => this.equalityCheck(x, element))) {
                elementsTaken.push(element);
                yield element;
            }
        }
    }
}
exports.IntersectIterable = IntersectIterable;
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