sequency/lib/plus.js

Functional sequences for processing iterable data in JavaScript

Object.defineProperty(exports, "__esModule", { value: true });
exports.Plus = void 0;
var Sequence_1 = require("./Sequence");
var AppendIterator = /** @class */ (function () {
    function AppendIterator(first, second) {
        this.first = first;
        this.second = second;
    }
    AppendIterator.prototype.next = function (value) {
        var item1 = this.first.next();
        if (!item1.done) {
            return { done: false, value: item1.value };
        }
        var item2 = this.second.next();
        if (!item2.done) {
            return { done: false, value: item2.value };
        }
        return { done: true, value: undefined };
    };
    return AppendIterator;
}());
var Plus = /** @class */ (function () {
    function Plus() {
    }
    Plus.prototype.plus = function (data) {
        if ((0, Sequence_1.isSequence)(data)) {
            return (0, Sequence_1.createSequence)(new AppendIterator(this.iterator, data.iterator));
        }
        else if (data instanceof Array) {
            var iterator = data[Symbol.iterator]();
            return (0, Sequence_1.createSequence)(new AppendIterator(this.iterator, iterator));
        }
        else {
            var iterator = [data][Symbol.iterator]();
            return (0, Sequence_1.createSequence)(new AppendIterator(this.iterator, iterator));
        }
    };
    return Plus;
}());
exports.Plus = Plus;
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