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- import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';
- import { filter } from './filter';
- import { throwIfEmpty } from './throwIfEmpty';
- import { defaultIfEmpty } from './defaultIfEmpty';
- import { take } from './take';
- export function elementAt(index, defaultValue) {
- if (index < 0) {
- throw new ArgumentOutOfRangeError();
- }
- var hasDefaultValue = arguments.length >= 2;
- return function (source) {
- return source.pipe(filter(function (v, i) { return i === index; }), take(1), hasDefaultValue ? defaultIfEmpty(defaultValue) : throwIfEmpty(function () { return new ArgumentOutOfRangeError(); }));
- };
- }
- //# sourceMappingURL=elementAt.js.map
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