In the last 10 years I think the change that has most improved my web...
In the last 10 years I think the change that has most improved my web development experience is moving from JavaScript to TypeScript.
I haven't seen "undefined is not not a function" in years.
I check the docs less often because autocomplete is fantastic.
I don't write imports because with TS auto-import is rock solid.
I can understand everyone else's code more easily because I have complete clarity about object shapes, arguments, and return types.
I understand my own code better because the data structures I pass around have clear, descriptive names.
It's fantastic.