1 var baseSum = require('./_baseSum');
3 /** Used as references for various `Number` constants. */
7 * The base implementation of `_.mean` and `_.meanBy` without support for
11 * @param {Array} array The array to iterate over.
12 * @param {Function} iteratee The function invoked per iteration.
13 * @returns {number} Returns the mean.
15 function baseMean(array, iteratee) {
16 var length = array == null ? 0 : array.length;
17 return length ? (baseSum(array, iteratee) / length) : NAN;
20 module.exports = baseMean;