用途：方便js操作查询json数据。

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使用方法：只需要引用linq.js即可。

查询方法：

一、where查询

var myList = [  { Name: "Jim", Age: 20 },  { Name: "Kate", Age: 21 },  { Name: "Lilei", Age: 18 },  { Name: "John", Age: 14 },  { Name: "LinTao", Age: 25 }];var arrRes = Enumerable.From(myList).Where("x=>x.Name=='Jim'").ToArray();

 

二、排序：OrderBy

var myList = [  { Name: "Jim", Age: 20 },  { Name: "Kate", Age: 21 },  { Name: "Lilei", Age: 18 },  { Name: "John", Age: 14 },  { Name: "LinTao", Age: 25 }];var arrRes = Enumerable.From(myList).OrderBy("x=>x.Age").ToArray();//降序OrderByDescending()

　

 

三、去重：Distinct

var myList = [  { Name: "Jim", Age: 20 },  { Name: "Kate", Age: 20 },  { Name: "Lilei", Age: 20 },  { Name: "John", Age: 14 },  { Name: "LinTao", Age: 25 }];var arrRes = Enumerable.From(myList).Distinct("x=>x.Age").ToArray();

 

四、遍历：ForEach

var myList = [  { Name: "Jim", Age: 20 },  { Name: "Kate", Age: 20 },  { Name: "Lilei", Age: 20 },  { Name: "John", Age: 14 },  { Name: "LinTao", Age: 25 }   ];   Enumerable.From(myList).ForEach(function(value, index){        document.write("值="+value+",索引="+index);   });

 

五、取唯一对象：First、FirstOrDefault、Last、LastOrDefault、Single、SingleOrDefault

var myList = [  { Name: "Jim", Age: 20 },  { Name: "Kate", Age: 20 },  { Name: "Lilei", Age: 20 },  { Name: "John", Age: 14 },  { Name: "LinTao", Age: 25 }];var arrRes = Enumerable.From(myList).FirstOrDefault("x=>x.Age>18");

　

六、Skip、Take

Enumerable.Range(1,10).Skip(5)//结果[6,7,8,9,10]Enumerable.Range(1,10).Take(5)//结果[1,2,3,4,5]