js 多维数组去重

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

 
  
    // 多维数组去重 
   
   
   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 
   
  
    }