触摸：force 属性

someElement.addEventListener(
  "touchstart",
  (e) => {
    // Iterate through the list of touch points and log each touch
    // point's force.
    for (let i = 0; i < e.targetTouches.length; i++) {
      // Add code to "switch" based on the force value. For example
      // minimum pressure vs. maximum pressure could result in
      // different handling of the user's input.
      console.log(`targetTouches[${i}].force = ${e.targetTouches[i].force}`);
    }
  },
  false,
);