"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.pairwise = void 0;
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var lift_1 = require("../util/lift");
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var OperatorSubscriber_1 = require("./OperatorSubscriber");
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function pairwise() {
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return lift_1.operate(function (source, subscriber) {
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var prev;
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var hasPrev = false;
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source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
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var p = prev;
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prev = value;
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hasPrev && subscriber.next([p, value]);
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hasPrev = true;
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}));
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});
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}
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exports.pairwise = pairwise;
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//# sourceMappingURL=pairwise.js.map
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