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[英]JavaScript recursive function to transform parent/child records into a nested array
[英]Javascript - Nested parent/child array recursive function that flattens parent only
我有一个多维嵌套的父/子数组,如下所示:
{
parent: {
name: "foo"
},
children: [
{
parent: {
name: "asdf",
},
children: []
},
{
parent: {},
children: []
},
{
parent: {},
children: []
},
...
]
}
我想要做的是在这个数组上应用递归函数,仅展平父属性并保持子节点原样,以便得到这样的结果:
{
name: "foo",
children: [
{
name: "asdf",
children: []
},
{
children: []
},
{
children: []
},
...
]
}
我尝试使用underscore.js,但我无法找到一个可以解决问题的递归函数。 有什么想法吗?
您可以通过迭代数组并更新所需属性来使用迭代和递归方法。
如果找到孩子,请再次迭代。
var array = [{ parent: { name: 'a', surname: 'b', }, children: [{ parent: { name: 'c', surname: 'd', }, children: [{ parent: { name: 'e', surname: 'f' } }], childrenName: 'v', childrenSurname: 'w' }], childrenName: 'x', childrenSurname: 'y' }]; array.forEach(function iter(object) { if (object.parent) { object.name = object.parent.name; object.surname = object.parent.surname; delete object.parent; } object.children && object.children.forEach(iter); }); console.log(array);
.as-console-wrapper { max-height: 100% !important; top: 0; }
希望这个recurse
功能是你所需要的
const recurse = (data) => {
for(let i = 0, l = data.length; i < l; i++){
if(data[i]['parent']){
data[i]['name'] = data[i]['parent']['name']
delete data[i]['parent']
}
if(data[i]['children']) recurse(data[i]['children'])
}
}
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