What are you trying to achieve?

read and understand documentation

What do you get instead?

method grabValueFromAll has wrong description - seems to be copy-paste from other function (grabValueFrom)

Details

Link: https://codecept.io/helpers/Nightmare/#grabvaluefromall

The descrition and the example for grabValueFromAll is the very same as for grabValueFrom ab

Let's make sure the matcher was called with supported parameters, fail fast otherwise.

There should be no need in console.error usage.