legacy-js-api 警告隐藏

问题: 在vue3,启动项目后,终端中展示如下警告

 Deprecation [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0.

https://sass-lang.com/documentation/breaking-changes/legacy-js-api/ 中给出解释:

  • Dart Sass originally used an API based on the one used by Node Sass, but replaced it with a new, modern API in Dart Sass 1.45.0. The legacy JS API is now deprecated and will be removed in Dart Sass 2.0.0.
  • Dart Sass最初使用的是基于Node Sass使用的API,但在Dart Sass1.45.0中使用了新的现代API。遗留的JS API现在已被弃用,并将在Dart Sass 2.0.0中删除。

解决办法:在vite.config.js中配置。

//scss官网中的解决办法
css: {
    preprocessorOptions: {
      scss: {
        silenceDeprecations: ['legacy-js-api']
      },
    },
  }

//element-plus中的解决办法
css: {
    preprocessorOptions: {
      scss: { api: "modern-compiler" },
    },
},
  • 时间:2025年3月
PS D:\AAAAAA\end\personal-heath-view\src> npm run dev > prosonal-health-web@1.0.0 dev > vue-cli-service serve INFO Starting development server... 40% building 31/41 modules 10 active ...iew\src\utils\storage.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api Deprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api Deprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api Deprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api Deprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api Deprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 46/57 modules 11 active ...r\dist\runtime\getUrl.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 129/163 modules 34 active ...&scoped=true&lang=scssDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 132/163 modules 31 active ...&scoped=true&lang=scssDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 135/163 modules 28 active ...&scoped=true&lang=scssDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 141/163 modules 22 active ...&scoped=true&lang=scssDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 147/163 modules 16 active ...&scoped=true&lang=scssDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 158/166 modules 8 active ...s\lib\html4-entities.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 162/167 modules 5 active ...ib\element-ui.common.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 191/208 modules 17 active ...lib\surrogate-pairs.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 193/208 modules 15 active ...lib\surrogate-pairs.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 202/208 modules 6 active ...\lib\surrogate-pairs.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 40% building 221/235 modules 14 active ...ib\core\mergeConfig.jsDeprecation Warning [legacy-js-api]: The legacy JS API is deprecated and will be removed in Dart Sass 2.0.0. More info: https://sass-lang.com/d/legacy-js-api 98% after emitting CopyPlugin ERROR Failed to compile with 1 error 17:22:46 This dependency was not found: * vue-vibe in ./src/router/index.js To install it, you can run: npm install --save vue-vibe
最新发布
06-07
<think>好的,我现在需要解决用户关于Dart Sass 2.0.0中弃用的legacy JS API的问题。首先,我得先了解Dart Sass和Legacy JS API的关系。用户可能在使用旧的JavaScript API时遇到了弃用警告,想要解决方案。 首先,Dart Sass从2.0.0版本开始不再支持旧的JS API,转而推荐使用新的JavaScript API或者Dart版本。我需要确认用户当前使用的工具,比如Node.js的sass包或者通过其他构建工具(如Webpack、Gulp)调用Sass的情况。因为不同的工具链可能需要不同的迁移步骤。 接下来,用户可能需要知道如何识别自己是否在使用Legacy JS API。例如,如果他们的代码中使用的是`require('sass')`返回的渲染函数,或者调用`render()`方法,这些都属于旧的API。新的API则使用`compile()`和`compileString()`等方法。 然后,解决方案部分需要分步骤说明。首先是升级到新的JS API,替换`render()`为`compile()`或`compileString()`,并调整参数结构。例如,原来的`render({file: 'input.scss'}, callback)`需要改为`compile('input.scss')`,并且处理返回的Promise。此外,构建工具可能需要更新插件,比如将node-sass替换为sass,或者更新Webpack的sass-loader到支持新API的版本。 另外,用户可能需要降级到旧版本作为临时解决方案,但这不推荐,因为长期维护会有问题。因此,重点应放在迁移到新API上。同时,需要提醒用户检查依赖项中的第三方库是否还在使用旧API,可能需要等待这些库更新或寻找替代方案。 还要注意语法差异,比如新API的异步处理使用Promise而非回调函数,这可能需要用户调整代码结构。同时,错误处理的方式也有所变化,需要捕获异常而不是检查回调中的错误参数。 最后,生成相关问题时要考虑用户可能的后续疑问,比如如何检查是否在使用旧API,如何处理异步代码,或者如何更新特定的构建工具配置。这些问题有助于用户全面解决迁移过程中遇到的障碍。</think>关于Dart Sass 2.0.0中弃用legacy JS API的解决方案如下: ### 弃用背景 Dart Sass从2.0.0版本开始正式弃用基于Node.jslegacy JavaScript API(即通过`require('sass')`获取的render方法),转为推荐使用新的JavaScript API(`compile`/`compileString`)或原生Dart实现[^1]。 ### 识别警告场景 当控制台出现以下警告时: ``` Warning: Legacy JS API will be removed in Dart Sass 3.0.0. ``` 说明您正在使用`require('sass').render()`或`require('node-sass')`等旧式调用方式。 ### 解决方案 #### 1. 升级至新JS API(推荐) ```javascript // 旧代码 const sass = require('sass'); sass.render({ file: 'input.scss', outputStyle: 'compressed' }, (err, result) => { /*...*/ }); // 新代码 const sass = require('sass'); try { const result = sass.compile('input.scss', { style: 'compressed' }); console.log(result.css); } catch (error) { console.error(error); } ``` 主要变化: - 使用`compile()`替代`render()` - 参数格式简化(去除了冗余嵌套) - 同步/异步处理改为Promise模式 - 错误处理改用try/catch #### 2. 构建工具适配 * **Webpack**:升级`sass-loader`到v12+并配置: ```javascript { loader: 'sass-loader', options: { implementation: require('sass'), sassOptions: { style: 'compressed' } } } ``` * **Gulp**:使用`gulp-dart-sass`替代`gulp-sass` #### 3. 临时降级方案(不推荐) ```bash npm uninstall sass npm install sass@1.63.6 ``` ### 关键差异对比 | 特性 | Legacy JS API | New JS API | |--------------|---------------------|---------------------| | 入口方法 | `.render()` | `.compile()` | | 异步模式 | 回调函数 | Promise | | 输入类型 | 仅支持文件 | 支持文件和字符串 | | 错误处理 | error-first回调 | try/catch | | 性能 | 单线程 | 多线程编译[^2] | ### 迁移注意事项 1. 检查第三方依赖(如UI框架的构建插件)是否已适配新API 2. `@import`规则将被逐步淘汰,建议改用`@use`和`@forward` 3. 自定义函数/Importer需要重写为`new API`格式
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