This is part 10 of the tutorial series Learn Javascript in Construct . This part continues on from part 9. So in case you missed it, see Learn Javascript in Con...
Construct is built on JS and can be extended with addons written in JS. That has been true since the release of C3. But nobody is forcing any user to learn JS to make games or apps with C3. This series is for people who want to expand their knowledge. No C3 user needs to understand JS to make software, but many of us would like to better understand the underlying language and be able to write addons.
If your complaint is that it took time and energy to write these tutorials, and that this takes time and energy away from improving C3, then I understand. I wish that it was possible to create behaviors using nothing but event sheet logic, and I would love to see more time and energy directed at that. But that doesn't make this tutorial series a bad thing. As a long-time game designer with a good grounding in basic programming, this series is quite valuable to me. If anything it inspires me to push Construct further using JS.