Question

我有这个JSON

        [
            {"key":"main1","value":320},
            {"key":"main2","value":240},
            {"key":"front1","value":220},
            {"key":"main1","value":300},
            {"key":"main2","value":240},
            {"key":"front1","value":120},
            {"key":"front5","value":120}
         ]

需要像这样进行转换，当它们具有相同的键并从相同的值创建数组时将其关闭。

        [
            {"main1": [320, 300]},
            {"main2": [240, 240]},
            {"front1": [220, 120]},
            {"front5": [120]}
         ]

Answer 1

你可以这样做：

var element,
    result = {},
    test = [
            {"key":"main1","value":320},
            {"key":"main2","value":240},
            {"key":"front1","value":220},
            {"key":"main1","value":300},
            {"key":"main2","value":240},
            {"key":"front1","value":120},
            {"key":"front5","value":120}
         ];

for (i in test) {
    element = test[i];
    if (!result[element.key]) {
        result[element.key]=[element.value];
    } else {
        result[element.key].push(element.value);        
    }
}

演示 - ＆gt;的 http://jsfiddle.net/e8afaak8/

将数组转换为另一个

1 个答案: