[1.1 原始类型的类型标注](1.1%E5%8E%9F%E5%A7%8B%E7%B1%BB%E5%9E%8B%E7%9A%84%E7%B1%BB%E5%9E%8B%E6%A0%87%E6%B3%A8.md) [1.2 数组的类型标注](1.2%E6%95%B0%E7%BB%84%E7%9A%84%E7%B1%BB%E5%9E%8B%E6%A0%87%E6%B3%A8.md) [1.3 对象的类型标注](1.3%E5%AF%B9%E8%B1%A1%E7%9A%84%E7%B1%BB%E5%9E%8B%E6%A0%87%E6%B3%A8.md) [1.4 装箱类型](1.4%E8%A3%85%E7%AE%B1%E7%B1%BB%E5%9E%8B.md) [1.5 unique symbol](1.5uniquesymbol.md) [1.6 字面量类型](1.6%E5%AD%97%E9%9D%A2%E9%87%8F%E7%B1%BB%E5%9E%8B.md) [1.7 枚举类型](1.7%E6%9E%9A%E4%B8%BE%E7%B1%BB%E5%9E%8B.md)