es6/operator/startWith.js

import { ArrayObservable } from '../observable/ArrayObservable';
import { ScalarObservable } from '../observable/ScalarObservable';
import { EmptyObservable } from '../observable/EmptyObservable';
import { concatStatic } from './concat';
import { isScheduler } from '../util/isScheduler';
/* tslint:disable:max-line-length */
export function startWith() {
    var array = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        array[_i - 0] = arguments[_i];
    }
    var scheduler = array[array.length - 1];
    if (isScheduler(scheduler)) {
        array.pop();
    }
    else {
        scheduler = null;
    }
    var len = array.length;
    if (len === 1) {
        return concatStatic(new ScalarObservable(array[0], scheduler), this);
    }
    else if (len > 1) {
        return concatStatic(new ArrayObservable(array, scheduler), this);
    }
    else {
        return concatStatic(new EmptyObservable(scheduler), this);
    }
}
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