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{"version":3,"file":"takeLast.js","sourceRoot":"","sources":["../../src/operator/takeLast.ts"],"names":[],"mappings":";AAEA,yBAAgD,uBAAuB,CAAC,CAAA;AAExE;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GAmCG;AACH,kBAAiD,KAAa;IAC5D,MAAM,CAAC,mBAAmB,CAAC,KAAK,CAAC,CAAC,IAAI,CAAkB,CAAC;AAC3D,CAAC;AAFe,gBAAQ,WAEvB,CAAA","sourcesContent":["\nimport { Observable } from '../Observable';\nimport { takeLast as higherOrderTakeLast } from '../operators/takeLast';\n\n/**\n * Emits only the last `count` values emitted by the source Observable.\n *\n * <span class=\"informal\">Remembers the latest `count` values, then emits those\n * only when the source completes.</span>\n *\n * <img src=\"./img/takeLast.png\" width=\"100%\">\n *\n * `takeLast` returns an Observable that emits at most the last `count` values\n * emitted by the source Observable. If the source emits fewer than `count`\n * values then all of its values are emitted. This operator must wait until the\n * `complete` notification emission from the source in order to emit the `next`\n * values on the output Observable, because otherwise it is impossible to know\n * whether or not more values will be emitted on the source. For this reason,\n * all values are emitted synchronously, followed by the complete notification.\n *\n * @example <caption>Take the last 3 values of an Observable with many values</caption>\n * var many = Rx.Observable.range(1, 100);\n * var lastThree = many.takeLast(3);\n * lastThree.subscribe(x => console.log(x));\n *\n * @see {@link take}\n * @see {@link takeUntil}\n * @see {@link takeWhile}\n * @see {@link skip}\n *\n * @throws {ArgumentOutOfRangeError} When using `takeLast(i)`, it delivers an\n * ArgumentOutOrRangeError to the Observer's `error` callback if `i < 0`.\n *\n * @param {number} count The maximum number of values to emit from the end of\n * the sequence of values emitted by the source Observable.\n * @return {Observable<T>} An Observable that emits at most the last count\n * values emitted by the source Observable.\n * @method takeLast\n * @owner Observable\n */\nexport function takeLast<T>(this: Observable<T>, count: number): Observable<T> {\n return higherOrderTakeLast(count)(this) as Observable<T>;\n}\n"]} |