| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | var baseSum = require('./_baseSum'); |
| 2 | |
| 3 | /** Used as references for various `Number` constants. */ |
| 4 | var 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 | */ |
| 15 | function baseMean(array, iteratee) { |
| 16 | var length = array == null ? 0 : array.length; |
| 17 | return length ? (baseSum(array, iteratee) / length) : NAN; |
| 18 | } |
| 19 | |
| 20 | module.exports = baseMean; |