用途：方便js操作查询json数据。
下载网址：http://jslinq.codeplex.com/
使用方法：只需要引用linq.js即可。
查询方法：
一、where查询
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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();
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二、排序：OrderBy
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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()
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三、去重：Distinct
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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();
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四、遍历：ForEach
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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);
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五、取唯一对象：First、FirstOrDefault、Last、LastOrDefault、Single、SingleOrDefault
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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");
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六、Skip、Take
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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]
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本文转自王磊的博客博客园博客，原文链接：http://www.cnblogs.com/vipstone/p/5588020.html，如需转载请自行联系原作者