[英]Filter array in array and get only the filtered items
I have the following array named filters and try to filter it by selected items.我有以下名为 filters 的数组,并尝试按所选项目对其进行过滤。
At the end I want to have all filters where a selected item is, but only with the selected items最后,我希望所有过滤器都位于所选项目所在的位置,但仅限于所选项目
let filters = [
{
id: 0,
name: 'property',
items: [
{
id: 0,
name: 'x',
isSelected: false
},
{
id: 1,
name: 'y',
isSelected: true
}
]
},
{
id: 1,
name: 'property2',
items: [
{
id: 0,
name: 'x',
isSelected: true
},
{
id: 1,
name: 'y',
isSelected: false
}
]
}
]
I want to get the following array at the end:我想在最后得到以下数组:
let filteredFilters = [
{
id: 0,
name: 'property',
items: [
{
id: 1,
name: 'y',
isSelected: true
}
]
},
{
id: 1,
name: 'property2',
items: [
{
id: 0,
name: 'x',
isSelected: true
}
]
}
]
I tried the following code, but it does not work.我尝试了以下代码,但它不起作用。
let filteredFilters = filters.filter(filter => {
return filter.items.filter(item => {
return item.isSelected === true;
})
})
You need map
+ filter
since you're dealing with a nested array:你需要
map
+ filter
因为你正在处理一个嵌套数组:
let filters = [ { id: 0, name: 'property', items: [ { id: 0, name: 'x', isSelected: false }, { id: 1, name: 'y', isSelected: true } ] }, { id: 1, name: 'property2', items: [ { id: 0, name: 'x', isSelected: true }, { id: 1, name: 'y', isSelected: false } ] } ] let filteredFilters = filters.map( ({items, ...rest}) => ({...rest, items: items.filter(item => item.isSelected)}) ).filter(x => x.items.length > 0); console.log(filteredFilters);
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