Check out a free preview of the full Front-End Tooling and Workflows with Grunt and Beyond course:
The "Grunt Clean & Grunt LESS" Lesson is part of the full, Front-End Tooling and Workflows with Grunt and Beyond course featured in this preview video. Here's what you'd learn in this lesson:
The Grunt clean task will remove any workspace added to the "workspaces" target. This wouldn't be a task to include as a part of the project's automation layer so it will be run manually as needed. Dave also updates the LESS plugin to use the merged version.