• JSON数据查询方法


    在进行前端项目开发的时候时长会遇到JSON的数据查找问题,如何方便快速查找?这里推荐一个linqjs组件,项目主页参见http://linqjs.codeplex.com/

    查询对象

    var jsonArray = [
        { "user": { "id": 100, "screen_name": "d_linq" }, "text": "to objects" },
        { "user": { "id": 130, "screen_name": "c_bill" }, "text": "g" },
        { "user": { "id": 155, "screen_name": "b_mskk" }, "text": "kabushiki kaisha" },
        { "user": { "id": 301, "screen_name": "a_xbox" }, "text": "halo reach" }
    ]
    // ["b_mskk:kabushiki kaisha", "c_bill:g", "d_linq:to objects"]
    var queryResult = Enumerable.From(jsonArray)
        .Where(function (x) { return x.user.id < 200 })
        .OrderBy(function (x) { return x.user.screen_name })
        .Select(function (x) { return x.user.screen_name + ':' + x.text })
        .ToArray();
    // shortcut! string lambda selector
    var queryResult2 = Enumerable.From(jsonArray)
        .Where("$.user.id < 200")
        .OrderBy("$.user.screen_name")
        .Select("$.user.screen_name + ':' + $.text")
        .ToArray();
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  • 原文地址:https://www.cnblogs.com/songhaipeng/p/5295769.html
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