Can someone tell me how to solve this problem correctly using nested loop

[ankurchaulagain]

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

function filteredArray(arr, elem) {
  let newArr = [...arr];
  // Only change code below this line
  for(let i=0;i<arr.length;i++)
  {
    for(let j=0;j<arr[i].length;j++){
    if(arr[i][j]==elem)
    {

      newArr.splice(i,1);
    }
    }
  }
  // Only change code above this line
  return newArr;
}

console.log(filteredArray([["trumpets", 2], ["flutes", 4], ["saxophones", 2]], 2) );```




      **Your browser information:**

User Agent is: <code>Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0</code>

**Challenge:**  Iterate Through All an Array's Items Using For Loops

**Link to the challenge:**
https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-data-structures/iterate-through-all-an-arrays-items-using-for-loops

[ilenia]

would you be able to explain what the challenge is asking?

[ankurchaulagain]

We have defined a function, filteredArray , which takes arr , a nested array, and elem as arguments, and returns a new array. elem represents an element that may or may not be present on one or more of the arrays nested within arr . Modify the function, using a for loop, to return a filtered version of the passed array such that any array nested within arr containing elem has been removed.

[ilenia]

and if you check the output, what’s wrong with it?

[ankurchaulagain]

Output is [ [ ‘flutes’, 4 ], [ ‘saxophones’, 2 ] ]

It should be [ [ ‘flutes’, 4 ]} only

[ankurchaulagain]

Actually I know whats wrong with my code and why but I want to how to fix it using the same method of nested loops

[ilenia]

it’s not the nested loops that’s the issue - it’s changing the array you are iterating on. splice changes the array, so the loop is jumping over some items