| 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(); |
| } |
| const hasDefaultValue = arguments.length >= 2; |
| return (source) => source.pipe(filter((v, i) => i === index), take(1), hasDefaultValue |
| ? defaultIfEmpty(defaultValue) |
| : throwIfEmpty(() => new ArgumentOutOfRangeError())); |
| } |
| //# sourceMappingURL=elementAt.js.map |