48 lines
No EOL
1.9 KiB
JavaScript
48 lines
No EOL
1.9 KiB
JavaScript
"use strict";
|
|
var __values = (this && this.__values) || function(o) {
|
|
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
|
|
if (m) return m.call(o);
|
|
if (o && typeof o.length === "number") return {
|
|
next: function () {
|
|
if (o && i >= o.length) o = void 0;
|
|
return { value: o && o[i++], done: !o };
|
|
}
|
|
};
|
|
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.takeLast = void 0;
|
|
var empty_1 = require("../observable/empty");
|
|
var lift_1 = require("../util/lift");
|
|
var OperatorSubscriber_1 = require("./OperatorSubscriber");
|
|
function takeLast(count) {
|
|
return count <= 0
|
|
? function () { return empty_1.EMPTY; }
|
|
: lift_1.operate(function (source, subscriber) {
|
|
var buffer = [];
|
|
source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
|
|
buffer.push(value);
|
|
count < buffer.length && buffer.shift();
|
|
}, function () {
|
|
var e_1, _a;
|
|
try {
|
|
for (var buffer_1 = __values(buffer), buffer_1_1 = buffer_1.next(); !buffer_1_1.done; buffer_1_1 = buffer_1.next()) {
|
|
var value = buffer_1_1.value;
|
|
subscriber.next(value);
|
|
}
|
|
}
|
|
catch (e_1_1) { e_1 = { error: e_1_1 }; }
|
|
finally {
|
|
try {
|
|
if (buffer_1_1 && !buffer_1_1.done && (_a = buffer_1.return)) _a.call(buffer_1);
|
|
}
|
|
finally { if (e_1) throw e_1.error; }
|
|
}
|
|
subscriber.complete();
|
|
}, undefined, function () {
|
|
buffer = null;
|
|
}));
|
|
});
|
|
}
|
|
exports.takeLast = takeLast;
|
|
//# sourceMappingURL=takeLast.js.map
|