function countKeyByEvent()

in packages/hooks/src/useKeyPress/index.ts [145:156]

• 9 lines of code
• 3 McCabe index (conditional complexity)

function countKeyByEvent(event: KeyboardEvent) {
  const countOfModifier = Object.keys(modifierKey).reduce((total, key) => {
    if (modifierKey[key](event)) {
      return total + 1;
    }

    return total;
  }, 0);

  // 16 17 18 91 92 是修饰键的 keyCode，如果 keyCode 是修饰键，那么激活数量就是修饰键的数量，如果不是，那么就需要 +1
  return [16, 17, 18, 91, 92].includes(event.keyCode) ? countOfModifier : countOfModifier + 1;
}