用另一个数组过滤JavaScript对象数组
假设我们有一个像这样的对象数组-
const arr = [
{area: 'NY', name: 'Bla', ads: true},
{area: 'DF', name: 'SFS', ads: false},
{area: 'TT', name: 'SDSD', ads: true},
{area: 'SD', name: 'Engine', ads: false},
{area: 'NSK', name: 'Toyota', ads: false},
];我们需要编写一个JavaScript函数，该函数接受一个数组作为第一个参数，并将字符串文本数组作为第二个参数。
然后，我们的函数应过滤输入对象数组，以仅包含其“area”属性包含在文字数组（第二个参数）中的那些对象。
示例
为此的代码将是-
const arr = [
{area: 'NY', name: 'Bla', ads: true},
{area: 'DF', name: 'SFS', ads: false},
{area: 'TT', name: 'SDSD', ads: true},
{area: 'SD', name: 'Engine', ads: false},
{area: 'NSK', name: 'Toyota', ads: false},
];
const keys = ['NY', 'SD'];
const filterByArea = (arr = [], keys = []) => {
const res = [];
for(let i = 0; i < arr.length; i++){
const { area } = arr[i];
if(keys.includes(area)){
res.push(arr[i]);
};
};
return res;
};
console.log(filterByArea(arr, keys));输出结果
控制台中的输出将是-
[
{ area: 'NY', name: 'Bla', ads: true },
{ area: 'SD', name: 'Engine', ads: false }
]