@reactivex/ix-es5-esm/iterable/operators/skiplast.js

The Interactive Extensions for JavaScript

import { __extends, __generator, __values } from "tslib";
import { IterableX } from '../iterablex.js';
/** @ignore */
var SkipLastIterable = /** @class */ (function (_super) {
    __extends(SkipLastIterable, _super);
    function SkipLastIterable(source, count) {
        var _this = _super.call(this) || this;
        _this._source = source;
        _this._count = count;
        return _this;
    }
    SkipLastIterable.prototype[Symbol.iterator] = function () {
        var q, _a, _b, item, e_1_1;
        var e_1, _c;
        return __generator(this, function (_d) {
            switch (_d.label) {
                case 0:
                    q = [];
                    _d.label = 1;
                case 1:
                    _d.trys.push([1, 6, 7, 8]);
                    _a = __values(this._source), _b = _a.next();
                    _d.label = 2;
                case 2:
                    if (!!_b.done) return [3 /*break*/, 5];
                    item = _b.value;
                    q.push(item);
                    if (!(q.length > this._count)) return [3 /*break*/, 4];
                    return [4 /*yield*/, q.shift()];
                case 3:
                    _d.sent();
                    _d.label = 4;
                case 4:
                    _b = _a.next();
                    return [3 /*break*/, 2];
                case 5: return [3 /*break*/, 8];
                case 6:
                    e_1_1 = _d.sent();
                    e_1 = { error: e_1_1 };
                    return [3 /*break*/, 8];
                case 7:
                    try {
                        if (_b && !_b.done && (_c = _a.return)) _c.call(_a);
                    }
                    finally { if (e_1) throw e_1.error; }
                    return [7 /*endfinally*/];
                case 8: return [2 /*return*/];
            }
        });
    };
    return SkipLastIterable;
}(IterableX));
export { SkipLastIterable };
/**
 * Bypasses a specified number of elements at the end of an iterable sequence.
 *
 * @template TSource The type of the elements in the source sequence.
 * @param {number} count Number of elements to bypass at the end of the source sequence.
 * @returns {MonoTypeOperatorFunction<TSource>} An iterable sequence containing the
 * source sequence elements except for the bypassed ones at the end.
 */
export function skipLast(count) {
    return function skipLastOperatorFunction(source) {
        return new SkipLastIterable(source, count);
    };
}

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