Preguntas sobre ejemplos de oraciones con, y la definición y uso de "Javascript"

A: Sentences themselves are fine, but the transition from talking about javascript to how there week is going is quite odd.

A: × I never understood Javascript vs I never understand JavaScript
✓ I never understand JavaScript

I never understand JavaScript.
like I never understand you what they trying to say. ( Right now someone giving speech/ Taking about Simple past tense)

I have never understood JavaScript. (You still hope to understand)

I never understood. ( Past Tense)

A: Noun.

In other words, "...specifying the number of zeroes."

A: attempting to learn "JavaScript", they ended up listening to more confusing terms like ES6 and more.