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node_modules/rxjs/_esm2015/internal/operators/elementAt.js
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15
node_modules/rxjs/_esm2015/internal/operators/elementAt.js
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import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';
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import { filter } from './filter';
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import { throwIfEmpty } from './throwIfEmpty';
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import { defaultIfEmpty } from './defaultIfEmpty';
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import { take } from './take';
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export function elementAt(index, defaultValue) {
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if (index < 0) {
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throw new ArgumentOutOfRangeError();
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}
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const hasDefaultValue = arguments.length >= 2;
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return (source) => source.pipe(filter((v, i) => i === index), take(1), hasDefaultValue
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? defaultIfEmpty(defaultValue)
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: throwIfEmpty(() => new ArgumentOutOfRangeError()));
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}
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//# sourceMappingURL=elementAt.js.map
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