dart-html | 易学教程

How do I drive an animation loop at 60fps with Dart and the web?

阅读更多关于 How do I drive an animation loop at 60fps with Dart and the web?

问题 How do I drive an animation loop or game loop at 60fps in a Dart web application? 回答1: Use window.animationFrame , the Future-based cousin of the traditional window.requestAnimationFrame . Dart has been shifting to use Future and Stream as more object-oriented ways to handle asynchronous operations. The callback-based (old 'n busted) requestAnimationFrame is replaced by the Future-based (new hotness) animationFrame . Here is a sample: import 'dart:html'; gameLoop(num delta) { // do stuff

CORS with Dart, how do I get it to work?

阅读更多关于 CORS with Dart, how do I get it to work?

Just started tinkering with Dart and I decided to write a simple Http Server and a client. My server code: #import("dart:io"); final HOST = "127.0.0.1"; final PORT = 8080; final LOG_REQUESTS = true; void main() { HttpServer server = new HttpServer(); server.addRequestHandler((HttpRequest request) => true, requestReceivedHandler); server.listen(HOST, PORT); print("Server is running on ${PORT}."); } void requestReceivedHandler(HttpRequest request, HttpResponse response) { var pathname = request.uri; var apiresponse=""; if (LOG_REQUESTS) { print("Request: ${request.method} ${pathname}"); } if

How do I dynamically add a stylesheet using Dart?

阅读更多关于 How do I dynamically add a stylesheet using Dart?

问题 I know in Javascript how to dynamically add a stylesheet. This can be done using the following code: var sheet = document.createElement('style'); But when I try the same using Dart (https://www.dartlang.org/), like this: CssStyleSheet sheet = document.createElement('style'); Then the Dart-editor tells me "A value of type Element cannot be assigned to a variable of type CssStyleSheet" . I also tried it like this: CssStyleSheet styleSheet = new CssStyleSheet(); But that gives me the warning

CORS with Dart, how do I get it to work?

阅读更多关于 CORS with Dart, how do I get it to work?

问题 Just started tinkering with Dart and I decided to write a simple Http Server and a client. My server code: #import("dart:io"); final HOST = "127.0.0.1"; final PORT = 8080; final LOG_REQUESTS = true; void main() { HttpServer server = new HttpServer(); server.addRequestHandler((HttpRequest request) => true, requestReceivedHandler); server.listen(HOST, PORT); print("Server is running on ${PORT}."); } void requestReceivedHandler(HttpRequest request, HttpResponse response) { var pathname = request

HTML Tags Within Internationalized Strings In Polymer.dart

阅读更多关于 HTML Tags Within Internationalized Strings In Polymer.dart

问题 I am displaying internationalized strings within a Polymer element as follows: <div> {{title}} {{subtitle1}} {{paragraph1}} {{subtitle2}} {{paragraph2}} </div> ... and have the following dart code: @observable String title; @observable String subtitle1; @observable String paragraph1; @observable String