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keksAccountGUI/node_modulesOLD/rxjs/_esm5/internal/observable/merge.js
2019-08-11 20:48:02 +02:00

28 lines
1.1 KiB
JavaScript

/** PURE_IMPORTS_START _Observable,_util_isScheduler,_operators_mergeAll,_fromArray PURE_IMPORTS_END */
import { Observable } from '../Observable';
import { isScheduler } from '../util/isScheduler';
import { mergeAll } from '../operators/mergeAll';
import { fromArray } from './fromArray';
export function merge() {
var observables = [];
for (var _i = 0; _i < arguments.length; _i++) {
observables[_i] = arguments[_i];
}
var concurrent = Number.POSITIVE_INFINITY;
var scheduler = null;
var last = observables[observables.length - 1];
if (isScheduler(last)) {
scheduler = observables.pop();
if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {
concurrent = observables.pop();
}
}
else if (typeof last === 'number') {
concurrent = observables.pop();
}
if (scheduler === null && observables.length === 1 && observables[0] instanceof Observable) {
return observables[0];
}
return mergeAll(concurrent)(fromArray(observables, scheduler));
}
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