English Dictionary

corner case

noun

(chiefly engineering) A problem or situation that occurs only when two or more operating parameters are at extreme values, or when two or more unusual operating circumstances happen to coincide.

This is a corner case that we need to consider.

意味（1）

(chiefly engineering) A problem or situation that occurs only when two or more operating parameters are at extreme values, or when two or more unusual operating circumstances happen to coincide.

The smallest and largest legal packet sizes are examples of the first type of corner case. This type of boundary condition is usually specified by or easily inferred from the externally published feature set of the design.

意味（2）

(by extension) Any unusual scenario.

However, there is a corner case during which we don't want to trigger this event, and that is when the widget is being instantiated for the first time.