Flutter 兼容性策略 Announcements and migration guides Deprecation policy Dart and other libraries used by Flutter Flutter 兼容性策略 The Flutter team tries to balance the need for API...

App Reducer App Reducer Redux works by firing actions , which express an intent to change state. Then, if all is playing well together, your reducer is the actual pure functio...

Write command-line apps What’s the point? Running an app with the standalone Dart VM Overview of the dcat app code Getting dependencies Running dcat Parsing command-line argu...

Exceptions Exceptions Your Dart code can throw and catch exceptions. Exceptions are errorsindicating that something unexpected happened. If the exception isn’tcaught, the isola...

Migrating to Dart 2 Migrating web apps to Dart 2 Obsolete pub features

Fetch data dynamically What's the point? About JSON Setting up the HttpRequest object Sending the request Handling the response Populating the UI from JSON Other resources ...

Web apps Web apps Google builds many critical web apps using the Dart language, often withAngularDart. The Google Ads front end (formerly called Google AdWords) isbuilt in Dart...

Functions Functions Dart is a true object-oriented language, so even functions are objectsand have a type, Function. This means that functions can be assigned to variables or p...