如何使用JavaScript合并JSON对象? [英] How to merge JSON objects using JavaScript?
本文介绍了如何使用JavaScript合并JSON对象?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何使用plain(不带jQuery)JavaScript合并JSON对象?
How to merge JSON objects using plain(without jQuery) JavaScript?
要求是:
转换自:
chartData=[
{"date":"2014-05-1","CAT1":0.1},
{"date":"2014-05-1","CAT2":0.2},
{"date":"2014-05-1","CAT3":0.3},
{"date":"2014-05-1","UNSET":0.4},
{"date":"2014-05-2","CAT1":0.4},
{"date":"2014-05-2","CAT2":0.3},
{"date":"2014-05-2","CAT3":0.2},
{"date":"2014-05-2","UNSET":0.1}
];
转换为:
chartData=[
{"date":"2014-05-1","CAT1":0.1,"CAT2":0.2,"CAT3":0.3,"UNSET":0.4},
{"date":"2014-05-2","CAT1":0.4,"CAT2":0.3,"CAT3":0.2,"UNSET":0.1}
]
推荐答案
以下是如何执行此操作的示例...无需jquery 。
Here's an example of how to do this... no jquery required.
chartData=[{"date":"2014-05-1","CAT1":0.1},{"date":"2014-05-1","CAT2":0.2},{"date":"2014-05-1","CAT3":0.3},{"date":"2014-05-1","UNSET":0.4},{"date":"2014-05-2","CAT1":0.4},{"date":"2014-05-2","CAT2":0.3},{"date":"2014-05-2","CAT3":0.2},{"date":"2014-05-2","UNSET":0.1}];
function groupProps(orig, key) {
var newArr = [],
groups = {},
newItem, i, j, cur;
for (i = 0, j = orig.length; i < j; i++) {
cur = orig[i];
if (!(cur[key] in groups)) {
groups[cur[key]] = {date: cur[key] };
newArr.push(groups[cur[key]]);
}
for (var prop in cur) {
if (prop != key) {
groups[cur[key]][prop] = cur[prop];
}
}
}
return newArr;
}
console.log(groupProps(chartData, "date"))
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