linq-js-docs/src/resources/zh-cn/apis/IEnumerable/methods/average.json

use linq and lamdba in javascript

{
    "histroys": [
        {
            "since": "2.1.15",
            "overloads": [
                {
                    "parameters": [
                        {
                            "name": "selector",
                            "types": [
                                "function",
                                "string",
                                "symbol",
                                "number"
                            ],
                            "descriptions": [
                                "应用于每个元素的转换函数"
                            ],
                            "defaultValue": "defaultSelector",
                            "declare": {
                                "returns": {
                                    "type": "number"
                                },
                                "parameters": [
                                    {
                                        "name": "element",
                                        "types": [
                                            "any"
                                        ]
                                    },
                                    {
                                        "name": "index",
                                        "types": [
                                            "number"
                                        ]
                                    }
                                ]
                            }
                        }
                    ],
                    "returns": {
                        "type": "number",
                        "descriptions": [
                            "值序列的平均值"
                        ]
                    },
                    "description": "计算通过对序列中的每个元素调用转换函数获得的新的值序列的平均值",
                    "sees": [
                        {
                            "apis": "IEnumerable",
                            "method": "aggregate"
                        },
                        {
                            "apis": "IEnumerable",
                            "method": "sum"
                        },
                        {
                            "apis": "Enumerable.selectors",
                            "property": "default"
                        },
                        {
                            "href": "https://msdn.microsoft.com/{language}/library/bb549067(v=vs.110).aspx",
                            "title": "Microsoft MSDN"
                        }
                    ]
                }
            ]
        }
    ]
}