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  • package.json

    package.json

    http://javascript.ruanyifeng.com/nodejs/packagejson.html

    版本号

    比如下面的package

    {
      "dependencies": {
        "babel-core": "^5.8.25",
        "babel-loader": "^5.3.2",
        "browserslist": "^1.0.1",
        "bundle-loader": "^0.5.4",
        "css-loader": "~0.16.0",
        "file-loader": "~0.8.4",
        "jquery": "~2.1.4",
        "jsx-loader": "~0.13.2",
        "num2fraction": "^1.2.2",
        "react": "~0.13.3",
        "react-hot-loader": "^1.2.8",
        "react-router": "^0.13.3",
        "style-loader": "~0.12.3",
        "url-loader": "~0.5.6",
        "webpack": "~1.11.0",
        "webpack-dev-server": "^1.10.1"
      },
      "devDependencies": {
        "webpack": "^1.11.0"
      }
    }
    
    
    • 指定版本:比如1.2.2,遵循“大版本.次要版本.小版本”的格式规定,安装时只安装指定版本。
    • 波浪号(tilde)+指定版本:比如1.2.2,表示安装1.2.x的最新版本(不低于1.2.2),但是不安装1.3.x,也就是说安装时不改变大版本号和次要版本号。
    • 插入号^(caret)+指定版本:
      比如ˆ1.2.2,表示安装1.x.x的最新版本(不低于1.2.2),但是不安装2.x.x,也就是说安装时不改变大版本号。
    • latest:安装最新版本

    需要注意的是,如果大版本号为0,则插入号的行为与波浪号相同,这是因为此时处于开发阶段,即使是次要版本号变动,也可能带来程序的不兼容。

    参考
    http://stackoverflow.com/questions/22343224/difference-between-tilde-and-caret-in-package-json

    version desc
    ~version "Approximately equivalent to version" See npm semver - Tilde Ranges & semver (7)
    ^version "Compatible with version" See npm semver - Caret Ranges & semver (7)
    version Must match version exactly
    >version Must be greater than version
    >=version etc
    <version etc
    * Matches any version
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  • 原文地址:https://www.cnblogs.com/cart55free99/p/5148327.html
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