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Last change
on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
814 bytes
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| [6a3a178] | 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | var EmptyError_1 = require("../util/EmptyError");
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| 4 | var filter_1 = require("./filter");
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| 5 | var take_1 = require("./take");
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| 6 | var defaultIfEmpty_1 = require("./defaultIfEmpty");
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| 7 | var throwIfEmpty_1 = require("./throwIfEmpty");
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| 8 | var identity_1 = require("../util/identity");
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| 9 | function first(predicate, defaultValue) {
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| 10 | var hasDefaultValue = arguments.length >= 2;
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| 11 | return function (source) { return source.pipe(predicate ? filter_1.filter(function (v, i) { return predicate(v, i, source); }) : identity_1.identity, take_1.take(1), hasDefaultValue ? defaultIfEmpty_1.defaultIfEmpty(defaultValue) : throwIfEmpty_1.throwIfEmpty(function () { return new EmptyError_1.EmptyError(); })); };
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| 12 | }
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| 13 | exports.first = first;
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| 14 | //# sourceMappingURL=first.js.map |
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