我已经嵌套了json对象数组,我想从该嵌套数组中获取单个键值对格式的值,以传递给http调用,而不是我需要数组的单个对象
[{
"menu_id":1,
"parent_menu_id":0,
"children":[
{
"menu_id":2,
"parent_menu_id":1,
"children":[
{
"menu_id":3,
"parent_menu_id":2,
"children":[
]
}
]
}
]
},
{
"menu_id":5,
"parent_menu_id":0,
"children":[
{
"menu_id":6,
"parent_menu_id":5,
"children":[
{
"menu_id":7,
"parent_menu_id":6,
"children":[
]
}
]
}
]
}]
我需要数组格式的结果
[
{
"menu_id":1,
"parent_menu_id":0
},
{
"menu_id":2,
"parent_menu_id":1
},
{
"menu_id":3,
"parent_menu_id":2
}
]
答案 0 :(得分:1)
您可以为此创建一个递归函数。
function toFlatArray(obj) {
let result = [];
result.push({
menu_id: obj.menu_id,
parent_menu_id: obj.parent_menu_id
});
if (obj.children && obj.children.length) {
obj.children.forEach(child => {
result = result.concat(toFlatArray(child));
});
}
return result;
}
// added another method to run forEach
function toFlatArrayFromArray(arr) {
let result = [];
arr.forEach(obj => {
result = result.concat(toFlatArray(obj));
});
return result;
}
const myObj = [{
"menu_id":1,
"parent_menu_id":0,
"children":[
{
"menu_id":2,
"parent_menu_id":1,
"children":[
{
"menu_id":3,
"parent_menu_id":2,
"children":[
]
}
]
}
]
},
{
"menu_id":5,
"parent_menu_id":0,
"children":[
{
"menu_id":6,
"parent_menu_id":5,
"children":[
{
"menu_id":7,
"parent_menu_id":6,
"children":[
]
}
]
}
]
}];
console.log(toFlatArrayFromArray(myObj));