Gamepad: axes property

The Gamepad.axes property of the Gamepad interface returns an array representing the controls with axes present on the device (e.g., analog thumb sticks).

Each entry in the array is a floating point value in the range -1.0 – 1.0, representing the axis position from the lowest value (-1.0) to the highest value (1.0).

Value

An array of numbers.

Examples

function gameLoop() {
  const [gp] = navigator.getGamepads();

  let a = 0;
  let b = 0;
  if (gp.axes[0] !== 0) {
    b -= gp.axes[0];
  } else if (gp.axes[1] !== 0) {
    a += gp.axes[1];
  } else if (gp.axes[2] !== 0) {
    b += gp.axes[2];
  } else if (gp.axes[3] !== 0) {
    a -= gp.axes[3];
  }

  ball.style.left = `${a * 2}px`;
  ball.style.top = `${b * 2}px`;

  const start = requestAnimationFrame(gameLoop);
}

Specifications

Browser compatibility

See also

Using the Gamepad API