项目中遇到一个有趣的事情

晚上再写

    <script> let arr = [
            {
    
                id: 1,
                name: '互联网'
            }, {
    
                id: 2,
                name: '互联网'
            }, {
    
                id: 3,
                name: '互联网'
            }, {
    
                id: 4,
                name: '互联网'
            }
        ] let crr = [] let brr = [[{
     id: 3, name: '3' }, {
     id: 3, name: '3' }], [{
     id: 1, name: '1' }, {
     id: 1, name: '1' }]] arr.forEach((a, index) => {
    
            brr.forEach((v, val) => {
    
                if (v.every((d) => d.id === a.id)) {
    
                    crr[index] = v
                }
            }) if(!crr[index]) {
    
                crr[index] = []
            }
        })
        
        console.log(crr);

     
    </script>