javascript 有没有办法从 .js 文件自动安装 node.js 依赖项？
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Is there a way to automatically install node.js dependencies from a .js file?
提问by sivano
If I have a foo.js node script, is there a way for me to automatically install all the npm dependencies?
如果我有一个 foo.js 节点脚本，有没有办法让我自动安装所有 npm 依赖项？
e.g. If foo.js had this:
例如，如果 foo.js 有这个：
var program = require('commander');
var cheerio = require('cheerio');
Is there any npm command or something that I could do that would read foo.js and do 'npm install commander;npm install cheerio'?
是否有任何 npm 命令或我可以做的事情来读取 foo.js 并执行“npm install command;npm installcheerio”？
回答by xbonez
List your dependencies in a package.jsonfile. You can then run npm installto install all dependencies.
在package.json文件中列出您的依赖项。然后，您可以运行npm install以安装所有依赖项。
Here's an example of a package.json file. Notice how dependencies are defined:
这是 package.json 文件的示例。注意依赖项是如何定义的：
{
"name": "best-practices",
"description": "A package using versioning best-practices",
"author": "Charlie Robbins <[email protected]>",
"dependencies": {
"colors": "0.x.x",
"express": "2.3.x",
"optimist": "0.2.x"
},
"devDependencies": {
"vows": "0.5.x"
},
"engine": "node >= 0.4.1"
}
Source: https://blog.nodejitsu.com/package-dependencies-done-right/
来源：https: //blog.nodejitsu.com/package-dependencies-done-right/
回答by Christian Maioli M.
There is now a tool that auto-installs required dependencies as you code.
现在有一个工具可以在您编写代码时自动安装所需的依赖项。
It's called auto-install.
这称为自动安装。
回答by Luca C.
npm-install-peers is a npm package that will detect peers and install them.
npm-install-peers 是一个 npm 包，它将检测对等点并安装它们。
Note that you should install it globally
请注意，您应该全局安装它
