CODE EXAMPLE FOR JAVASCRIPT

how to create a snake game in html css js

function startGame() {
  let squares = document.querySelectorAll(".grid div");
  randomApple(squares);
  //random apple
  direction = 1;
  scoreDisplay.innerHTML = score;
  intervalTime = 1000;
  currentSnake = [2, 1, 0];
  currentIndex = 0;
  currentSnake.forEach((index) => squares[index].classList.add("snake"));
  interval = setInterval(moveOutcome, intervalTime);
}