--save 添加至 package.json 裡 dependencies 部分，網頁執行時需要的套件，e.g., JQuery, React --save-dev 添加至 package.json 裡 devDependencies，開發時需要的套件，e.g., gulp, gulp-htmlmin, gulp-sass
![[Note] React - Hooks: useMemo](https://urlun0404.coderbridge.io/2022/07/22/Note-React-hooks-useMemo/?utm_source=coderbridge-io&utm_medium=blog_related_post_img&utm_campaign=Hoyi's Daily Note_[Note] React - Hooks: useMemo_@urlun0404_https://static.coderbridge.com/images/covers/default-post-cover-2.jpg)
 - 修改 commit 紀錄 part 1：commit 參數 --amend_@calon719_https://static.coderbridge.com/images/covers/default-post-cover-3.jpg)
