es6 嵌套数组循环_在与ES6深度嵌套的对象的javascript数组中寻找价值
在对象数组中,我需要找到value-- key是activity:但是,activity key可以将其深深地嵌套在数组中,如下所示:
const activityItems = [
{
name: 'Sunday',
items: [
{
name: 'Gym',
activity: 'weights',
},
],
},
{
name: 'Monday',
items: [
{
name: 'Track',
activity: 'race',
},
{
name: 'Work',
activity: 'meeting',
},
{
name: 'Swim',
items: [
{
name: 'Beach',
activity: 'scuba diving',
},
{
name: 'Pool',
activity: 'back stroke',
},
],
},
],
},
{} ...
{} ...
];
因此,我编写了一个递归算法来确定数组中是否存在某个活动:
let match = false;
const findMatchRecursion = (activity, activityItems) => {
for (let i = 0; i < activityItems.length; i += 1) {
if (activityItems[i].activity === activity) {
match = true;
break;
}
if (activityItems[i].items) {
findMatchRecursion(activity, activityItems[i].items);
}
}
return match;
};
有没有ES6办法确定活动是否存在于像这样的数组中?
我尝试过这样的事情:
const findMatch(activity, activityItems) {
let obj = activityItems.find(o => o.items.activity === activity);
return obj;
}
但这不适用于深层嵌套的活动。
谢谢