There seems to be a problem with the JavaScript function as the indexOf property is undefined

Question

function filteredArray(arr, elem) {   let newArr = [];

Iterating through each element of the multidimensional array.

for (let i=0;i<arr.length;i++){     
    for (let j=0;j<arr[i].length;j++){

If the value matches the argument passed, assign variable x to the current iteration's nested array value

  if (arr[i][j]==elem){ 
    let x = indexOf(arr[i][j]);

Remove the element with the index equal to variable x.

    arr[i][j].splice(x,1);

Add the remaining elements of the nested array to the new array and return it.

      newArr[i].push(...arr[i][j]);
      }
    }
  }
  console.log(newArr);
  return newArr;
}

HOWEVER THERE IS AN ERROR THAT SAYS 'indexOf is not defined'

I don't understand why it doesn't work. It returns undefined for indexOf in every iteration. Please review my code and share your thoughts.

Answer 1

Answer №1

indexOf is a method that can be used with arrays or strings, such as array.indexOf(element). Make sure to pass the correct array in your code.

You may also consider using variables i and j instead of indexOf, as they will provide the relevant index for the parent and nested arrays.

Answer 2

indexOf is a method that can be used with arrays or strings, such as array.indexOf(element). Make sure to pass the correct array in your code.

You may also consider using variables i and j instead of indexOf, as they will provide the relevant index for the parent and nested arrays.