dart-editor

Async/Await feature in Dart 1.8

安稳与你 提交于 2019-11-27 02:14:26
Is it in the 1.8 release as an experimental feature like enum or is it not? And how can I use it in the Dart Editor? Is there a nice article or example app that can get me started with this? When it is still an experimental feature what is recommended for pub packages? Is it fine to use that feature in pub packages or not? Update 2 The most recent nightly build also supports async* void main() { generate().listen((i) => print(i)); } Stream<int> generate () async* { int i = 0; for(int i = 0; i < 100; i++) { yield ++i; } } Update yield and yield* in a method marked sync* (returning an Iterable)

What is the difference between “show” and “as” in an import statement?

柔情痞子 提交于 2019-11-26 15:49:50
问题 What is the difference between show and as in an import statement? For example, what's the difference between import 'dart:convert' show JSON; and import 'package:google_maps/google_maps.dart' as GoogleMap; When do I use show and when should I use as ? If I switch to show GoogleMap all references to GoogleMap (e.g. GoogleMap.LatLng ) objects are reported as undefined. 回答1: as and show are two different concepts. With as you are giving the imported library a name. It's usually done to prevent

Breakpoints in Dartium not working

牧云@^-^@ 提交于 2019-11-26 12:48:32
问题 So if I add break points in .dart files that are located in /web directory of my project, it works fine. For example I\'m using AngularDart and the main.dart file works. However when I try to put a breakpoint in anything in the /lib directory, Dartium doesn\'t stop on them. How can I get the breakpoints in Dartium to work with the /lib directory? Note that I\'ve tried putting breakpoints with Dart Editor, IntelliJ with Dart Plugin and also directly in Dartium and nothing works. Is this

Async/Await feature in Dart 1.8

强颜欢笑 提交于 2019-11-26 10:02:00
问题 Is it in the 1.8 release as an experimental feature like enum or is it not? And how can I use it in the Dart Editor? Is there a nice article or example app that can get me started with this? When it is still an experimental feature what is recommended for pub packages? Is it fine to use that feature in pub packages or not? 回答1: Update 2 The most recent nightly build also supports async* void main() { generate().listen((i) => print(i)); } Stream<int> generate () async* { int i = 0; for(int i =