blob: fa9e00a0a24bf4bffc3f45fd68e114cfd1e57f13 [file] [log] [blame]
Leo Repp58b9f112021-11-22 11:57:47 +01001var baseSum = require('./_baseSum');
2
3/** Used as references for various `Number` constants. */
4var NAN = 0 / 0;
5
6/**
7 * The base implementation of `_.mean` and `_.meanBy` without support for
8 * iteratee shorthands.
9 *
10 * @private
11 * @param {Array} array The array to iterate over.
12 * @param {Function} iteratee The function invoked per iteration.
13 * @returns {number} Returns the mean.
14 */
15function baseMean(array, iteratee) {
16 var length = array == null ? 0 : array.length;
17 return length ? (baseSum(array, iteratee) / length) : NAN;
18}
19
20module.exports = baseMean;