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

28 lines
1.1 KiB
JavaScript

"use strict";
var isArray_1 = require('../util/isArray');
var race_1 = require('../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
*/
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_1.isArray(observables[0])) {
observables = observables[0];
}
return source.lift.call(race_1.race.apply(void 0, [source].concat(observables)));
};
}
exports.race = race;
//# sourceMappingURL=race.js.map