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1 | /**
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2 | * The base implementation of `_.reduce` and `_.reduceRight`, without support
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3 | * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
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4 | *
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5 | * @private
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6 | * @param {Array|Object} collection The collection to iterate over.
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7 | * @param {Function} iteratee The function invoked per iteration.
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8 | * @param {*} accumulator The initial value.
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9 | * @param {boolean} initAccum Specify using the first or last element of
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10 | * `collection` as the initial value.
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11 | * @param {Function} eachFunc The function to iterate over `collection`.
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12 | * @returns {*} Returns the accumulated value.
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13 | */
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14 | function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
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15 | eachFunc(collection, function(value, index, collection) {
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16 | accumulator = initAccum
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17 | ? (initAccum = false, value)
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18 | : iteratee(accumulator, value, index, collection);
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19 | });
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20 | return accumulator;
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21 | }
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22 |
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23 | module.exports = baseReduce;
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