问题描述
我有一个需要 Node 12 或更高版本的 Node.js 项目.有没有办法在 packages.json 文件中指定这个，这样安装程序会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，您的代码肯定不适用于任何较低版本，您可能也需要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 }
package.json 文件的文档可以在 在 npmjs 站点上找到
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.现在取决于用户是否需要运行 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
正如本下面指出的，在项目的根目录(与 package.json 文件相同级别)创建一个 .npmrc 文件，文本为 engine-strict=true 将在安装过程中强制出错.
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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