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21 lines
568 B
21 lines
568 B
var baseSum = require('./_baseSum');
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/** Used as references for various `Number` constants. */
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var NAN = 0 / 0;
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/**
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* The base implementation of `_.mean` and `_.meanBy` without support for
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* iteratee shorthands.
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*
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* @private
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* @param {Array} array The array to iterate over.
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* @param {Function} iteratee The function invoked per iteration.
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* @returns {number} Returns the mean.
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*/
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function baseMean(array, iteratee) {
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var length = array == null ? 0 : array.length;
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return length ? (baseSum(array, iteratee) / length) : NAN;
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}
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module.exports = baseMean;
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