如何在一个HTML中执行两个dart代码

本文介绍了如何在一个HTML中执行两个dart代码的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我正在尝试建立一个Dart应用程序。 这是我想要的过程。 在第一次连接时，用户有一个加载页面。在这段时间，他有一个动画，在后台，大dart文件（来自dart2js dart）。 一旦结束，下载的脚本 感谢您对这个程序的可能性有任何想法吗？ 。 EDIT： importdart：async @lazy import'test.dart'as foo; const lazy = const DeferredLibrary（'test'）; void main（）{ foo.init（）; //假定抛出NoSuchMethodError。 lazy.load（）。then（onFooLoaded）; } void onFooLoaded（_）{ foo.init（）; } test.dart 库测试; void init（）{ print（coucou）; } 解决方案基本上这个功能存在一段时间，但我还没有使用它自己。由于一些开放的问题，这个功能似乎有限的使用。我看到一个通知，即几个错误或缺少的功能已修复，但我不能告诉当前状态。 有关更多信息，请参阅 - https://api.dartlang.org/apidocs/channels/ be dartdoc-viewer / dart：async.DeferredLibrary - http://blog.sethladd.com/2013/04/lazy-load-libraries-in-dart.html - https://code.google.com/p/dart/issues/detail?id= 10171 - Dart中的代码拆分 - https://code.google.com/p/dart/issues / detail？id = 3940 - https://code.google.com/p/dart/issues/detail?id=9483 更新 我试过它，它在Chrome（不是在Dartium）中有一些小的改动。 test.dart library some_lib_name; //< == missing missing void init（）{ print（coucou）; } index.dart const lazy = const DeferredLibrary（'some_lib_name'）; //使用库名而不是文件名 I'm trying to build an Dart App.This is the process that I would like to have.At the first connection, the user have a loading page. During this time, he has an animation, and in background, the big dart file is downloaded (came from dart2js for dart).Once it's over, the downloaded script is execute and the app cans start to work.Any idea about the possibility of this process ?Thank you.EDIT:import "dart:async";@lazyimport 'test.dart' as foo;const lazy = const DeferredLibrary('test');void main() { foo.init(); // Supposed to throw a NoSuchMethodError. lazy.load().then(onFooLoaded);}void onFooLoaded(_) { foo.init();}test.dart library test;void init() { print("coucou");} 解决方案 It's called deferred loading. Basically this feature exists a while already but I haven't used it myself yet. Because of some open issues this feature seemed of limited use. I saw a notice that several bugs or missing feature were fixed but I can't tell the current status.For more information see- https://api.dartlang.org/apidocs/channels/be/dartdoc-viewer/dart:async.DeferredLibrary- http://blog.sethladd.com/2013/04/lazy-load-libraries-in-dart.html- https://code.google.com/p/dart/issues/detail?id=10171- Code Splitting in Dart- https://code.google.com/p/dart/issues/detail?id=3940- https://code.google.com/p/dart/issues/detail?id=9483UpdateI tried it and it works in Chrome (not in Dartium) with a few small changestest.dartlibrary some_lib_name; // <== was missingvoid init() { print("coucou");}index.dartconst lazy = const DeferredLibrary('some_lib_name'); // use the library name not the file name 这篇关于如何在一个HTML中执行两个dart代码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！