You can learn new language in short time but standard library and tools not that fast - especially if they dont exist. You will have to google e.g. how to parse

You can learn new language in short time but standard library and tools not that fast - especially if they dont exist. You will have to google e.g. how to parse Date etc. People enjoy big ecosystem of libraries and tools. Just to give you example In many ways I prefer Ruby than Python as a language but Python is just swiss army knife and in many cases you are one PIP install away to finding library that solves your problem. Maybe Python doesn't have such a nice web framework as Ruby on Rails but ruby is not much used elsewhere. I think people complaining about Dart as a chosen language not because of it's features but because 1) you have to learn and/or redevelop new SDK for it, 2) language doesn't have good interrop with any other languages (like Kotlin -> Java, Swift -> Objective-C, TypeScript -> JavaScript, Objective-C -> C++, Rust -> C, C++ -> C) 3) ecosystem is small