Effective Dart: Style Identifiers DO name types using UpperCamelCase. DO name extensions using UpperCamelCase. DO name libraries, packages, directories, and source files using lo...

Installation Getting Started Installation Prerequisites Next Up… Installation Getting Started Installation Prerequisites Next Up… Getting Started Let’s get it s...

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...

Fixing common type problems Troubleshooting Am I really using type-safe Dart? Static errors and warnings Undefined member Example 1: A variable is statically known to be some sup...

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

Directions 1. Get a DSN from Sentry 2. Import the Sentry package 3. Create a SentryClient 4. Create a function to report errors 5. Catch and report Dart errors 6. Catch and r...

dartbyexample dartbyexample   $ dart ifelse . dart 7 is odd 8 is divisble by 4 monday appointment : doctor This site is open source. Improve t...

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...

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