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