20 lines
443 B
JavaScript
20 lines
443 B
JavaScript
var helperNumberDivide = require('./helperNumberDivide')
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var getSize = require('./getSize')
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var sum = require('./sum')
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/**
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* 求平均值函数
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*
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* @param {Array} array 数组
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* @param {Function/String} iterate 方法或属性
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* @param {Object} context 上下文
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* @return {Number}
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*/
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function mean (array, iterate, context) {
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return helperNumberDivide(sum(array, iterate, context), getSize(array))
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}
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module.exports = mean
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