I have been working on this too long now, so for some reason my sudoku validator keeps returning undefined, it has to be the sudokuisvalid part, but i have no clue why it wont return the correct boolean now, fixed the problem with the getRow, and the 1 where the I is supposed to be, and the issue in the if(valid) part but it still comes up true when it is supposed to be false.

im really hoping its something obvious and im just too tired, and im new to programming so ill paste my code and see what y’all think!

function getRow(puzzle, row) {
// WRITE YOUR CODE HERE
return puzzle[row]
}

function getColumn(puzzle, col) {
// WRITE YOUR CODE HERE
return puzzle.map(row=>row[col])
}

function getSection(puzzle, x, y) {
// WRITE YOUR CODE HERE
let section = []
for(i = 3 * x; i < 3 * x + 3; i++){
  for(j = 3 * y; j < 3*y+3 ; j++){
    section.push(puzzle[i][j])
  }
}
return section
}

function includes1To9(arr) {
// WRITE YOUR CODE HERE
  for (i = 0; i < arr.length; i++){
    for (j = 0; j < arr.length; j++){
      if (j != i){
        if (arr[i] === arr[j]){
          return false
        }
      }
    }
  }
  return true
}

function sudokuIsValid(puzzle) {
  let valid =[]
  for(let i=0; i<9; i++){
    valid.push(getRow(puzzle,i))
    valid.push(getColumn(puzzle, i))
  }
  for(let i=0; i<3; i++){
    for(let j=0; j<3; j++){
      valid.push(getSection(puzzle, i, j))
    }
  }
  for(let i= 0; i< valid.length; i++){
    if(includes1To9[valid[i] === false){
      return false
    }
  }
  return true
}