js 多維數組去重

let list = [
  1,1,5,
  [1,1,6],
  [1,1,7,[1,1,78]]
];
let newList = [];
newList = getList(list);
console.log(newList);

 
          
            // 多維數組去重 
           
           
           getList(arr) { 
           
          
              for (let i=0; i<arr.length; i++) { 
           
          
                if (Array.isArray(arr[i])) { 
           
          
 
          
                  arr[i] = Array.from(new Set(arr[i])) 
           
          
                  
           getList(arr[i]); 
           
          
                } 
           
          
              }; 
           
          
              arr = Array.from(new Set(arr)); 
           
          
              return arr 
           
          
            }