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on this file since 84d0fbb was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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[6a3a178] | 1 | var baseIteratee = require('./_baseIteratee'),
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| 2 | isArrayLike = require('./isArrayLike'),
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| 3 | keys = require('./keys');
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| 4 |
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| 5 | /**
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| 6 | * Creates a `_.find` or `_.findLast` function.
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| 7 | *
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| 8 | * @private
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| 9 | * @param {Function} findIndexFunc The function to find the collection index.
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| 10 | * @returns {Function} Returns the new find function.
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| 11 | */
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| 12 | function createFind(findIndexFunc) {
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| 13 | return function(collection, predicate, fromIndex) {
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| 14 | var iterable = Object(collection);
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| 15 | if (!isArrayLike(collection)) {
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| 16 | var iteratee = baseIteratee(predicate, 3);
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| 17 | collection = keys(collection);
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| 18 | predicate = function(key) { return iteratee(iterable[key], key, iterable); };
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| 19 | }
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| 20 | var index = findIndexFunc(collection, predicate, fromIndex);
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| 21 | return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
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| 22 | };
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| 23 | }
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| 24 |
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| 25 | module.exports = createFind;
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