npm install -dev與npm install --save-dev區別
原文作者:_FEE
來源:CSDN
原文地址:https://blog.csdn.net/Randy_Shenyp/article/details/73740920
當你為你的模組安裝一個依賴模組時,正常情況下你得先安裝他們(在模組根目錄下npm install module-name),
然後連同版本號手動將他們新增到模組配置檔案package.json中的依賴裡(dependencies)
-save和save-dev可以省掉你手動修改package.json檔案的步驟。
npm install module-name -save 自動把模組和版本號新增到dependencies部分(生產環境)
例如:
"dependencies": {
"gulp-install": "^0.6.0"
}
npm install module-name -save-dve 自動把模組和版本號新增到devDependencies部分(開發環境)
例如:
"devDependencies": {
"del": "^2.2.2",
"gulp": "^3.9.1",
"gulp-autoprefixer": "^3.1.0",
"gulp-cached": "^1.1.0",
"gulp-changed": "^1.3.0",
"gulp-clean": "^0.3.2",
"gulp-concat": "^2.6.1",
"gulp-cssnano": "^2.1.2",
"gulp-if": "^2.0.1",
"gulp-imagemin": "^3.1.1",
"gulp-install": "^0.6.0",
"gulp-jshint": "^2.0.4",
"gulp-livereload": "^3.8.1",
"gulp-load-plugins": "^1.5.0",
"gulp-notify": "^2.2.0",
"gulp-plumber": "^1.1.0",
"gulp-rename": "^1.2.2",
"gulp-sass": "^3.1.0",
"gulp-sass-inheritance": "^0.5.1",
"gulp-sourcemaps": "^1.6.0",
"gulp-uglify": "^2.0.1",
"inheritance": "^0.2.1",
"jshint": "^2.9.4",
"path": "^0.12.7"
},
通過這些命令,我們會得到一個新的package.json。
假如:刪除node_modules目錄,然後執行 npm install --production,可以看到,npm只幫我們自動安裝package.json中dependencies部分的模組;如果執行npm install ,則package.json中指定的dependencies和devDependencies都會被自動安裝進來。