宿州市福香源生产的蜜心金桔苯甲酸超标 涉苏果

百度 ” “我们的困难真是大极了”  1940年和1941年,各个抗日根据地遭遇到空前的物质困难。

In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid object or address. The meaning of a null reference varies among language implementations.

In JavaScript, null is marked as one of the primitive values, because its behavior is seemingly primitive. However, when using the typeof operator, it returns "object".

js
console.log(typeof null); // "object"

This is considered a bug, but one which cannot be fixed because it will break too many scripts.

See also