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20220330_Vote/Ewide.Web.Entry/wwwroot/lib/xe-utils/sum.js

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+var helperNumberAdd = require('./helperNumberAdd')
+
+var isFunction = require('./isFunction')
+var each = require('./each')
+var get = require('./get')
+
+/**
+  * 求和函数，将数值相加
+  *
+  * @param {Array} array 数组
+  * @param {Function/String} iterate 方法或属性
+  * @param {Object} context 上下文
+  * @return {Number}
+  */
+function sum (array, iterate, context) {
+  var result = 0
+  each(array, iterate ? isFunction(iterate) ? function () {
+    result = helperNumberAdd(result, iterate.apply(context, arguments))
+  } : function (val) {
+    result = helperNumberAdd(result, get(val, iterate))
+  } : function (val) {
+    result = helperNumberAdd(result, val)
+  })
+  return result
+}
+
+module.exports = sum