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Last change
on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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| 1 | import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';
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| 2 | import { filter } from './filter';
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| 3 | import { throwIfEmpty } from './throwIfEmpty';
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| 4 | import { defaultIfEmpty } from './defaultIfEmpty';
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| 5 | import { take } from './take';
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| 6 | export function elementAt(index, defaultValue) {
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| 7 | if (index < 0) {
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| 8 | throw new ArgumentOutOfRangeError();
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| 9 | }
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| 10 | const hasDefaultValue = arguments.length >= 2;
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| 11 | return (source) => source.pipe(filter((v, i) => i === index), take(1), hasDefaultValue
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| 12 | ? defaultIfEmpty(defaultValue)
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| 13 | : throwIfEmpty(() => new ArgumentOutOfRangeError()));
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| 14 | }
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| 15 | //# sourceMappingURL=elementAt.js.map |
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