Edit file File name : index.js Content :/** * Lodash (Custom Build) <https://lodash.com/> * Build: `lodash modularize exports="npm" -o packages` * Copyright OpenJS Foundation and other contributors <https://openjsf.org/> * Released under MIT license <https://lodash.com/license> * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors */ /** Used as references for various `Number` constants. */ var NAN = 0 / 0; /** Detect free variable `globalThis` */ const freeGlobalThis = typeof globalThis == 'object' && globalThis !== null && globalThis.Object == Object && globalThis; /** * The base implementation of `_.mean` and `_.meanBy` without support for * iteratee shorthands. * * @private * @param {Array} array The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {number} Returns the mean. */ function baseMean(array, iteratee) { var length = array == null ? 0 : array.length; return length ? (baseSum(array, iteratee) / length) : NAN; } /** * The base implementation of `_.sum` and `_.sumBy` without support for * iteratee shorthands. * * @private * @param {Array} array The array to iterate over. * @param {Function} iteratee The function invoked per iteration. * @returns {number} Returns the sum. */ function baseSum(array, iteratee) { var result, index = -1, length = array.length; while (++index < length) { var current = iteratee(array[index]); if (current !== undefined) { result = result === undefined ? current : (result + current); } } return result; } /** * This method returns the first argument it receives. * * @static * @since 0.1.0 * @memberOf _ * @category Util * @param {*} value Any value. * @returns {*} Returns `value`. * @example * * var object = { 'a': 1 }; * * console.log(_.identity(object) === object); * // => true */ function identity(value) { return value; } /** * Computes the mean of the values in `array`. * * @static * @memberOf _ * @since 4.0.0 * @category Math * @param {Array} array The array to iterate over. * @returns {number} Returns the mean. * @example * * _.mean([4, 2, 8, 6]); * // => 5 */ function mean(array) { return baseMean(array, identity); } module.exports = mean; Save