feat: initial commit

node_modules/rxjs/internal/operators/pairwise.js

@@ -0,0 +1,51 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    }
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var Subscriber_1 = require("../Subscriber");
+function pairwise() {
+    return function (source) { return source.lift(new PairwiseOperator()); };
+}
+exports.pairwise = pairwise;
+var PairwiseOperator = (function () {
+    function PairwiseOperator() {
+    }
+    PairwiseOperator.prototype.call = function (subscriber, source) {
+        return source.subscribe(new PairwiseSubscriber(subscriber));
+    };
+    return PairwiseOperator;
+}());
+var PairwiseSubscriber = (function (_super) {
+    __extends(PairwiseSubscriber, _super);
+    function PairwiseSubscriber(destination) {
+        var _this = _super.call(this, destination) || this;
+        _this.hasPrev = false;
+        return _this;
+    }
+    PairwiseSubscriber.prototype._next = function (value) {
+        var pair;
+        if (this.hasPrev) {
+            pair = [this.prev, value];
+        }
+        else {
+            this.hasPrev = true;
+        }
+        this.prev = value;
+        if (pair) {
+            this.destination.next(pair);
+        }
+    };
+    return PairwiseSubscriber;
+}(Subscriber_1.Subscriber));
+//# sourceMappingURL=pairwise.js.map