如何在package.json中指定所需的Node.js版本? [英] How can I specify the required Node.js version in package.json?

问题描述

我有一个Node.js项目，需要Node版本12或更高版本.是否可以在packages.json文件中指定此方法，以便安装程序自动检查并通知用户是否需要升级?

I have a Node.js project that requires Node version 12 or higher. Is there a way to specify this in the packages.json file, so that the installer will automatically check and inform the users if they need to upgrade?

推荐答案

我认为您可以使用引擎"字段:

I think you can use the "engines" field:

{ "engines" : { "node" : ">=0.12" } }

正如您所说的那样，您的代码绝对不适用于任何较低版本，您可能也希望使用"engineStrict"标志:

As you're saying your code definitely won't work with any lower versions, you probably want the "engineStrict" flag too:

{ "engineStrict" : true }

可在npmjs网站上找到

Documentation for the package.json file can be found on the npmjs site

更新

engineStrict现在已弃用，因此这只会发出警告.现在，用户可以根据需要运行npm config set engine-strict true.

engineStrict is now deprecated, so this will only give a warning. It's now down to the user to run npm config set engine-strict true if they want this.

更新2

如下文所指出的，如果节点版本不是，则在项目的根目录(与package.json文件处于同一级别)上创建文本为engine-strict=true的.npmrc文件将在安装过程中产生错误.兼容.

As ben pointed out below, creating a .npmrc file at the root of your project (the same level as your package.json file) with the text engine-strict=true will force an error during installation if the Node version is not compatible.

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