[英]Get a sub-object for every object in JSON using Javascript
I have JSON that is a list of county objects with several year sub-objects. 我有JSON,它是县县对象列表以及数年子对象的列表。 The format is like this: 格式如下:
{
county1: {
"2007": {
"data1": 5,
"data2": 58
},
"2008": {
"data1": 12,
"data2": 63
},
},
county2: {
"2007": {
"data1": 75,
"data2": 3
},
"2008": {
"data1": 9,
"data2": 8
},
}
}
Is there an easy way in javascript to return a similar structure, but with only a single year for each county ie 2008? 有没有一种简单的方法可以在javascript中返回相似的结构,但是每个县只有一年,即2008年?
Consider your data as data variable and design the way you want your new data to be structured 将数据视为数据变量,并设计要构造新数据的方式
Object.keys(data).reduce((acc, val) => {
acc[val] = data[val]['2008']
return acc;
}, {})
OR 要么
Object.keys(data).reduce((acc, val) => {
acc[val] = {'2008': data[val]['2008']}
return acc;
}, {})
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