Javascript 改变数组结构
我有一个Javascript 改变数组结构,javascript,Javascript,我有一个categoriesWithSub数组,它有一个category对象和subCategory对象数组,其结构如下: [{ category: {}, subCategory: [] // The array of subCategories for this category. }] [{ category: { id: '', catName: '', subCategories: [] }, }] 这是设置
categoriesWithSub
数组,它有一个category
对象和subCategory
对象数组,其结构如下:
[{
category: {},
subCategory: [] // The array of subCategories for this category.
}]
[{
category: {
id: '',
catName: '',
subCategories: []
},
}]
这是设置Sub数组的分类的代码:
const categories = await getCategories();
const subCategories = await Promise.all(categories.map(category => getSubCategories(category.id)));
const categoriesWithSub = zipWith(categories, subCategories, (category, subCategory) => ({
category,
subCategory,
}));
如何更新代码以根据以下结构组合类别和子类别:
[{
category: {},
subCategory: [] // The array of subCategories for this category.
}]
[{
category: {
id: '',
catName: '',
subCategories: []
},
}]
您可以在映射时直接执行此操作:
const categories = await getCategories();
const result = await Promise.all(categories.map(async category => {
const subCategories = await getSubCategories(category.id);
return { ...category, subCategories };
}));
或者保持您的拉链与
:
const result = zipWith(categories, subCategories, (category, subCategories) => ({
...category,
subCategories,
}));
请单击[]
代码段编辑器,并使用回调创建所需的结构。