TestQA/node_modules/rxjs/operators/race.js

"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;
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