<script>
var array1 = ['2023-04-05','2023-04-06','2023-04-07']; //array1
var array2 = ['2023-04-07']; //array2
found1 = array1.find((val, index) => { //在array1中查找日期
return array2.includes(val);
});
$('.show').html(found1);
</script>
The result is 2023-04-07. How to get results similar to 2023-04-05, 2023-04-06
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
You can use
Array#filterto get all elements in the first array that are not in the second array.