Basic use of babel

babel

Transcoder es6->es5

first step

Install the babel tool, use the command, view the version number

npm install --global babel-cli
    
babel --version

Second step

Configuration file

.babelrc (fixed suffix)

{
    
    
    "presets": ["es2015"],
    "plugins": []
}

third step

Install transcoder

npm install --save-dev babel-preset-es2015

the fourth step

转码结果写入一个文件 
mkdir dist1
#--out-file 或 -o 参数指定输出文件 
babel src/example.js --out-file dist1/compiled.js 
或者  babel src/example.js -o dist1/compiled.js 

整个目录转码  
mkdir dist2  
--out-dir 或 -d 参数指定输出目录 
babel src --out-dir dist2 
或者 
babel src -d dist2

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Origin blog.csdn.net/qq_45783660/article/details/112851260