npm脚本部分"clean:dist“与"clean”

Question

我正在尝试弄清楚在package.json脚本部分中"clean:dist“或"clean:js”与"clean“的作用？我在网上搜索了NPM documentation，但没有找到任何线索。那么有没有人可以帮我解释一下"clean:dist“或者"clean:js”和"clean“的作用和用法呢？谢谢

 "scripts": {
    "clean:dist"   : "rimraf dist",
    "clean:js"     : "rimraf public/js/main*.js && rimraf public/js/app.js && rimraf public/js/plugins.js && rimraf public/js/*.map",
    "clean:css"    : "rimraf public/css/main*.css && rimraf public/css/app*.css && rimraf public/css/*.map",
    "clean:fonts"  : "rimraf public/fonts/*",
    "clean:server" : "rimraf server.js && rimraf server.js.map",
    "clean:tmp"    : "rimraf tmp",
    "clean"        : "run-s clean:dist clean:tmp clean:server clean:css clean:js clean:fonts",
    "update:schema": "babel-node tools/update-schema.js",
    "admin-check"  : "cross-env NODE_ENV=development babel-node tools/check-admin-user.js",
    "hot:server"   : "cross-env NODE_ENV=development webpack --colors --display-    "start": "node server.js"
}