react引入less

太过爱你忘了你带给我的痛 2022-11-15 03:41 199阅读 0赞

## react引入less ##

如果使用`sass`的话直接

> yarn add sass-loader node-sass 使用yarn安装有可能安装不成功，不知道为啥这个跟router插件一起用的时候报错  
> npm i sass-loader node-sass -S 安装完成也不行的话 退出刷新

但是今天我想使用less怎么办呢  
首先下载

> yarn add less less-loader

接下来就是配置了，看了很多博客都不能实现，心酸啊

**第一步：首先你得暴露你的`webpack.config.js`**

> yarn eject或者 npm run eject

*会生成两个文件夹*  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70]  
**第二部找到其中的webpack.config.js**

> 找到其中的sass配置  
> `const lessRegex = /.less$/;`  
> `const lessModuleRegex = /.module.less$/;`

实在对vs不熟的同学按下`ctrl+f`在里面输入sass找到在下面添加，添加后的代码图片  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 1]  
在往下面找找到如图所示的代码直接复制一份  
![在这里插入图片描述][2021033019391877.png]

**记住是就在他的后面直接复制一份，将其sass改成less**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 2]  
我打圈圈的地方都要改  
**最后在package.json最后面修改**

"babel": { 
        "presets": [
          [
            "react-app",
            { 
              "runtime": "automatic"
            }
          ]
        ]
      }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 3]  
最后一步路径问题  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 4]  
找不到的小伙伴搜索`alias`

'@':path.resolve('src')

到此你的react脚手架就可以使用less了

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 7]  
会自动生成一个css文件

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70]: /images/20221022/44380c1b8c224006936f57c4c4390606.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 1]: /images/20221022/e47c3fb9145a494e97eefb2bebae6201.png
[2021033019391877.png]: /images/20221022/454c7c5b815d45e1bef32f1d14860230.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 2]: /images/20221022/ee51852064864c37b4b0e8051a02083d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20210330194712321.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw==,size_16,color_FFFFFF,t_70
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw_size_16_color_FFFFFF_t_70 7]: https://img-blog.csdnimg.cn/20210330194912443.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80ODI1NTkxNw==,size_16,color_FFFFFF,t_70