work.suroh.tk/node_modules/rxjs/_esm5/operators/race.js

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2019-12-02 12:22:45 +00:00
/** PURE_IMPORTS_START .._util_isArray,.._observable_race PURE_IMPORTS_END */
import { isArray } from '../util/isArray';
import { race as raceStatic } from '../observable/race';
/* tslint:enable:max-line-length */
/**
* Returns an Observable that mirrors the first source Observable to emit an item
* from the combination of this Observable and supplied Observables.
* @param {...Observables} ...observables Sources used to race for which Observable emits first.
* @return {Observable} An Observable that mirrors the output of the first Observable to emit an item.
* @method race
* @owner Observable
*/
export function race() {
var observables = [];
for (var _i = 0; _i < arguments.length; _i++) {
observables[_i - 0] = arguments[_i];
}
return function raceOperatorFunction(source) {
// if the only argument is an array, it was most likely called with
// `pair([obs1, obs2, ...])`
if (observables.length === 1 && isArray(observables[0])) {
observables = observables[0];
}
return source.lift.call(raceStatic.apply(void 0, [source].concat(observables)));
};
}
//# sourceMappingURL=race.js.map