如何更新node.js中的量angular器npm模块？

我为Visual Studio使用Visual Studio 2013 Node.js工具。

我想更新量angular器到这个：

https://www.npmjs.org/package/protractor 

在Visual Studio中的npm下，我看到它显示我有protractor@0.24.2模块。 当我右键点击此并select

 update npm module 

它去

 https://registry.npmjs.org/protractor 

当我在URL中input时，在第一行1.0.0-rc2上显示最新版本：

 https://registry.npmjs.org/protractor {"_id":"protractor","_rev":"103-dc957e08fce862ad70c481b4a2327ee6", "name":"protractor","description":"Webdriver E2E test wrapper for Angular.", "dist-tags":{"latest":"1.0.0-rc2"}, "versions":{"0.1.0":{"name":"protractor", "description":"End to End test helpers for Angular.", "homepage":"https://github.com/juliemr/protractor","keywords": 

在输出窗口中显示更新：

 ====Executing command 'npm update protractor --save'==== npm http GET https://registry.npmjs.org/protractor npm http 304 https://registry.npmjs.org/protractor npm http GET https://registry.npmjs.org/selenium-webdriver npm http GET https://registry.npmjs.org/jasminewd npm http GET https://registry.npmjs.org/glob npm http GET https://registry.npmjs.org/saucelabs npm http GET https://registry.npmjs.org/adm-zip npm http GET https://registry.npmjs.org/optimist npm http GET https://registry.npmjs.org/lodash npm http GET https://registry.npmjs.org/q npm http GET https://registry.npmjs.org/source-map-support npm http 304 https://registry.npmjs.org/selenium-webdriver npm http 304 https://registry.npmjs.org/jasminewd npm http 304 https://registry.npmjs.org/saucelabs npm http 304 https://registry.npmjs.org/optimist npm http 304 https://registry.npmjs.org/q npm http 304 https://registry.npmjs.org/glob npm http 304 https://registry.npmjs.org/adm-zip npm http 304 https://registry.npmjs.org/lodash npm http 304 https://registry.npmjs.org/source-map-support npm http GET https://registry.npmjs.org/inherits npm http GET https://registry.npmjs.org/minimatch npm http GET https://registry.npmjs.org/wordwrap npm http GET https://registry.npmjs.org/minimist npm http GET https://registry.npmjs.org/source-map npm http 304 https://registry.npmjs.org/inherits npm http 304 https://registry.npmjs.org/minimatch npm http 304 https://registry.npmjs.org/wordwrap npm http 304 https://registry.npmjs.org/minimist npm http 304 https://registry.npmjs.org/source-map npm http GET https://registry.npmjs.org/lru-cache npm http GET https://registry.npmjs.org/sigmund npm http 304 https://registry.npmjs.org/lru-cache npm http 304 https://registry.npmjs.org/sigmund npm http GET https://registry.npmjs.org/amdefine npm http 304 https://registry.npmjs.org/amdefine protractor@0.24.2 node_modules\protractor ├── jasminewd@1.0.1 ├── saucelabs@0.1.1 ├── q@1.0.0 ├── adm-zip@0.4.4 ├── optimist@0.6.1 (wordwrap@0.0.2, minimist@0.0.10) ├── lodash@2.4.1 ├── glob@3.2.11 (inherits@2.0.1, minimatch@0.3.0) ├── source-map-support@0.2.7 (source-map@0.1.32) └── selenium-webdriver@2.42.0 ====npm command completed with exit code 0==== 

我想知道的是，如果第一行显示1.0.0-rc2作为最新版本，那为什么它仍然显示量angular器0.24.2作为更新后下载的版本？

Answer 1

“npm update”命令实际上并不是无条件升级包。 它只是将package升级到允许的最大semver，如package.json文件中针对您的依赖关系及其子依赖项所述。 要实际升级到更新的版本，您有两个select：

1. 使用“npm install”并指定要安装的版本。 您可以使用“最新”标签来指定最新版本，而无需查看它。 使用“–save”标志让npm编辑你的package.json文件并更新到新版本。

   npm安装量angular器@ latest –save

2. 编辑package.json并find带有“量angular器”的行：“0.24.2”，并将版本更改为“1.0.0-rc2”（或者你想要的版本）。 然后在更改并保存文件后，可以运行“npm update”或“npm install”。