Dart 可编译为 JavaScript，有时生成的代码比手动编写的 JavaScript 速度更快。观看 Dart 联合创始人 Kasper Lund 介绍 dart2js 编译器如何执行本地和全局优化，以便发出快速且语义上正确的 JavaScript 代码。通过摇树、类型推断和缩减大小，Dart 可以帮助您优化 Web 应用。
面向现代 Web 开发者的 Dart
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最后更新时间 (UTC)：2025-07-25。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-07-25。"],[],["Dart's dart2js compiler optimizes code for the web by performing local and global optimizations, often surpassing hand-written JavaScript in speed. It uses techniques like tree shaking, removing unused code, type inference to deduce data types, and minification to reduce code size. These optimization methods ensure that the JavaScript code generated from Dart is both semantically accurate and highly performant, ultimately improving web app performance.\n"]]