linq-js-docs
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use linq and lamdba in javascript
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{
"histroys": [
{
"since": "2.1.15",
"overloads": [
{
"parameters": [
{
"name": "keySelector",
"types": [
"function",
"string",
"symbol",
"number"
],
"descriptions": [
"用于提取每个元素的键的函数"
],
"defaultValue": "defaultKeySelector",
"declare": {
"returns": {
"type": "any"
},
"parameters": [
{
"name": "element",
"types": [
"any"
]
},
{
"name": "index",
"types": [
"number"
]
}
]
}
},
{
"name": "elementSelector",
"types": [
"function",
"string",
"symbol",
"number"
],
"descriptions": [
"用于将每个源元素映射到组中的元素的函数"
],
"defaultValue": "defaultValueSelector",
"declare": {
"returns": {
"type": "any"
},
"parameters": [
{
"name": "element",
"types": [
"any"
]
},
{
"name": "index",
"types": [
"number"
]
}
]
}
},
{
"name": "resultSelector",
"types": [
"function",
"string",
"symbol",
"number"
],
"descriptions": [
"用于从每个组中创建结果值的函数"
],
"defaultValue": "defaultResultSelector",
"declare": {
"returns": {
"type": "any"
},
"parameters": [
{
"name": "key",
"types": [
"any"
]
},
{
"name": "grouping",
"types": [
"IGrouping"
]
}
]
}
},
{
"name": "comparer",
"types": [
"function",
"string",
"symbol",
"number"
],
"descriptions": [
"用于对键进行比较相等比较器"
],
"defaultValue": "defaultEqualityComparer",
"declare": {
"returns": {
"type": "boolean"
},
"parameters": [
{
"name": "element",
"types": [
"any"
]
},
{
"name": "other",
"types": [
"any"
]
}
]
}
}
],
"returns": {
"type": "IEnumerable",
"descriptions": [
"对一组及其键的投影的结果的集合"
]
},
"description": "根据指定的键选择器函数对序列中的元素进行分组, 并且从每个组及其键中创建结果值. 通过使用指定的比较器对键值进行比较, 并且通过使用指定的函数对每个组的元素进行投影",
"remarks": [
"此方法通过延迟执行的方式实现"
],
"sees": [
{
"apis": "IEnumerable",
"method": "selectMany"
},
{
"apis": "IEnumerable",
"method": "groupJoin"
},
{
"apis": "Enumerable.selectors",
"property": "key"
},
{
"apis": "Enumerable.selectors",
"property": "value"
},
{
"apis": "Enumerable.selectors",
"method": "result"
},
{
"apis": "Enumerable.comparers",
"property": "equality"
},
{
"href": "https://msdn.microsoft.com/{language}/library/bb535049(v=vs.110).aspx",
"title": "Microsoft MSDN"
}
]
}
]
}
]
}