I fail at HN formatting - I forgot lists were pre-formatted and that horizontal scrolling is annoying. Here's those points again: - Dart is very toolable and h

I fail at HN formatting - I forgot lists were pre-formatted and that horizontal scrolling is annoying. Here's those points again: - Dart is very toolable and has a great IDE experience in a number of IDEs already: IntelliJ/WebStorm, Eclipse, the Dart Editor, Sublime, etc. - The semantics are much more sane and predictable than JavaScript: objects are closed; Dart has class-based inheritance with interfaces and mixins; type coercion is eliminated and thus predictable; arrays are real arrays, bound checked and can't have holes; 'this' is lexically bound; accessing a undefined property throws an exception rather than propagating undefined through your program; there are no top-level statements, so startup is predictable; and on and on... - Dart's syntax combined with interfaces allow for really great libraries, and Dart's core libraries and dart:html take full advantage of that. [] is separate from property access, so Lists, Maps, and Sets have nice-to-use interfaces. There can be multiple implementations of List, Map, etc. It's possible to write delegate/wrapper/proxy classes, etc. Dart's core libraries are a joy to use. - Static type warnings and checked mode helps developers write correct programs. Type checks really do find errors early and save users time. We see this internally.