对于对象字面量中的计算的属性名字，使用标志很容易。
With computed property names in object literals, symbols are very easy to work with.
是一个新的对象创建的每个复合字面量分配回路中的指针？
Is a new object created each time a compound literal is assigned to a pointer in a loop?
非常自然的使用类字面量作为工厂对象，这些能够被反射使用。
It is very natural to use the class literal as a factory object, which can then be used by reflection.
非常自然的使用类字面量作为工厂对象，这些能够被反射使用。
It is very natural to use the class literal as a factory object, which can then be used by reflection.
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