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3.6 KiB
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1 line
3.6 KiB
Plaintext
{"version":3,"file":"exhaustMap.js","sourceRoot":"","sources":["../../src/operator/exhaustMap.ts"],"names":[],"mappings":";AAEA,2BAA0C,yBAAyB,CAAC,CAAA;AAKpE,mCAAmC;AAEnC;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA4CG;AACH,oBAAyD,OAAwD,EAC7E,cAA4F;IAC9H,MAAM,CAAC,uBAAW,CAAC,OAAO,EAAE,cAAc,CAAC,CAAC,IAAI,CAAC,CAAC;AACpD,CAAC;AAHe,kBAAU,aAGzB,CAAA","sourcesContent":["\nimport { Observable, ObservableInput } from '../Observable';\nimport { exhaustMap as higherOrder } from '../operators/exhaustMap';\n\n/* tslint:disable:max-line-length */\nexport function exhaustMap<T, R>(this: Observable<T>, project: (value: T, index: number) => ObservableInput<R>): Observable<R>;\nexport function exhaustMap<T, I, R>(this: Observable<T>, project: (value: T, index: number) => ObservableInput<I>, resultSelector: (outerValue: T, innerValue: I, outerIndex: number, innerIndex: number) => R): Observable<R>;\n/* tslint:enable:max-line-length */\n\n/**\n * Projects each source value to an Observable which is merged in the output\n * Observable only if the previous projected Observable has completed.\n *\n * <span class=\"informal\">Maps each value to an Observable, then flattens all of\n * these inner Observables using {@link exhaust}.</span>\n *\n * <img src=\"./img/exhaustMap.png\" width=\"100%\">\n *\n * Returns an Observable that emits items based on applying a function that you\n * supply to each item emitted by the source Observable, where that function\n * returns an (so-called \"inner\") Observable. When it projects a source value to\n * an Observable, the output Observable begins emitting the items emitted by\n * that projected Observable. However, `exhaustMap` ignores every new projected\n * Observable if the previous projected Observable has not yet completed. Once\n * that one completes, it will accept and flatten the next projected Observable\n * and repeat this process.\n *\n * @example <caption>Run a finite timer for each click, only if there is no currently active timer</caption>\n * var clicks = Rx.Observable.fromEvent(document, 'click');\n * var result = clicks.exhaustMap((ev) => Rx.Observable.interval(1000).take(5));\n * result.subscribe(x => console.log(x));\n *\n * @see {@link concatMap}\n * @see {@link exhaust}\n * @see {@link mergeMap}\n * @see {@link switchMap}\n *\n * @param {function(value: T, ?index: number): ObservableInput} project A function\n * that, when applied to an item emitted by the source Observable, returns an\n * Observable.\n * @param {function(outerValue: T, innerValue: I, outerIndex: number, innerIndex: number): any} [resultSelector]\n * A function to produce the value on the output Observable based on the values\n * and the indices of the source (outer) emission and the inner Observable\n * emission. The arguments passed to this function are:\n * - `outerValue`: the value that came from the source\n * - `innerValue`: the value that came from the projected Observable\n * - `outerIndex`: the \"index\" of the value that came from the source\n * - `innerIndex`: the \"index\" of the value from the projected Observable\n * @return {Observable} An Observable containing projected Observables\n * of each item of the source, ignoring projected Observables that start before\n * their preceding Observable has completed.\n * @method exhaustMap\n * @owner Observable\n */\nexport function exhaustMap<T, I, R>(this: Observable<T>, project: (value: T, index: number) => ObservableInput<I>,\n resultSelector?: (outerValue: T, innerValue: I, outerIndex: number, innerIndex: number) => R): Observable<R> {\n return higherOrder(project, resultSelector)(this);\n}\n"]} |