It's totally legit to cull a function, get back a value, do nothing with it other than compare it to another value.

挑选一个函数是完全合法的，返回一个值，用它来做些事情而不是用它与其它的值比较。

哈佛公开课 - 计算机科学课程节选

The first scenario with two options they had nothing to compare either option to.

FORBES: 5 Behavioral Economics Principles Marketers Can't Afford to Ignore

Pentagon experts are currently looking at a Tajik military airfield, although so far there is nothing to compare with the intense involvement in Uzbekistan.

ECONOMIST: Tajikistan

She has nothing to compare them with.

NEWYORKER: Natalie