This can be the case for coding. A good example is when the change is simple but involves a library you’re unfamiliar with. You can set it off and not have to read any docs, and it will be easy to check if it got the API right.

Elsewhere I gave the example of copyediting. It’s a lot quicker to check the output than to refine it yourself.

Easy-to-verify tasks are everywhere I think. Not at the scale of seconds versus hours, but seconds versus minutes