Why do you say Lua is better designed? And are you comparing classic JS or ES6 JS? I like Lua but there are some things that just annoy me like indexing an array with 1, smaller standard library, etc. I find JS implementation of inheritance, objects, and prototyping better than Lua due to its simplicity.

I've been developing game scripts with Lua and I've professional Javascript experience so I'm familiar with both. I actually find Javascript way more readable and easier to work with in general, especially with the new additions. I mean, it's yet another anecdote but just wanted to share.

I agree. Both JS and Lua have a pretty limited standard library, but Lua is a dead simple language with a few simple mechanics that can be used to achieve complicated concepts.

I haven't got major experience in either language, but I find it much easier to read/understand/modify a moderately sized Lua project vs real world JavaScript code.