更改node

更改node_modules位置(Change node_modules location)

有没有办法更改node_modules文件夹位置？

例如：

- dir1 - dir2 - node_modules

至：

- dir1 - dir2 - node_modules

Is there a way to change the node_modules folder location?

For example:

- dir1 - dir2 - node_modules

to:

- dir1 - dir2 - node_modules

最满意答案

以下是默认情况下查看node_modules文件夹的代码

Module.prototype.load = function(filename) { debug('load ' + JSON.stringify(filename) + ' for module ' + JSON.stringify(this.id)); assert(!this.loaded); this.filename = filename; this.paths = Module._nodeModulePaths(path.dirname(filename)); var extension = path.extname(filename) || '.js'; if (!Module._extensions[extension]) extension = '.js'; Module._extensions[extension](this, filename); this.loaded = true; };

所以，以下是确切的搜索模式：

Node.JS看看给定的模块是否是核心模块。 （例如http ， fs等）始终在加载模块中占有优先级。

如果给定的模块不是核心模块（例如http ， fs等），Node.js将开始搜索名为node_modules的目录。

它将在当前目录（相对于Node.JS中当前正在执行的文件）中启动 ，然后在文件夹层次结构上起作用，检查每个级别的node_modules文件夹。 一旦Node.JS找到node_modules文件夹，它将尝试将给定的模块作为（.js）JavaScript文件或命名子目录加载; 如果找到命名的子目录，它将尝试以各种方式加载该文件。 所以，例如

如果您要求加载模块，“utils”及其目录不是.js文件，那么： Node.JS将通过以下方式搜索node_modules和utils的分层目录：

./node_modules/utils.js ./node_modules/utils/index.js ./node_modules/utils/package.json

如果Node.JS在上述步骤中仍然找不到文件，Node.js将开始查看环境变量的目录路径，即您的机器上设置的NODE_PATH（显然由Node.JS安装程序文件设置，如果您在Windows ）在所有上述步骤中找不到，然后打印一个堆栈跟踪到stder 例如 ： Error: Cannot find module 'yourfile' 更多信息：链接在这里甚至循环require（）解释得很好..

The following is the code which looks int the node_modules folder by default

Module.prototype.load = function(filename) { debug('load ' + JSON.stringify(filename) + ' for module ' + JSON.stringify(this.id)); assert(!this.loaded); this.filename = filename; this.paths = Module._nodeModulePaths(path.dirname(filename)); var extension = path.extname(filename) || '.js'; if (!Module._extensions[extension]) extension = '.js'; Module._extensions[extension](this, filename); this.loaded = true; };

So, following is the exact search pattern:

Node.JS looks to see if the given module is a core module. (e.g. http, fs, etc.) Always takes the precedence in the loading modules.

If the given module is not a core modules(e.g. http, fs, etc.), Node.js will then begin to search for a directory named, node_modules.

It will start in the current directory (relative to the currently-executing file in Node.JS) and then work its way up the folder hierarchy, checking each level for a node_modules folder. Once Node.JS finds the node_modules folder, it will then attempt to load the given module either as a (.js) JavaScript file or as a named sub-directory; if it finds the named sub-directory, it will then attempt to load the file in various ways. So, for example

If you make a request to load the module, "utils" and its a directory not a .js file then:Node.JS will search a hierarchical directory for node_modules and utils in the following ways:

./node_modules/utils.js ./node_modules/utils/index.js ./node_modules/utils/package.json

If Node.JS still can't find the file in above steps, Node.js will then start to look into the directory paths from environment variables i.e. NODE_PATH set on your machine(obviously set by Node.JS installer file if you are on windows) Not Found in all the above steps then, prints a stack trace to stderE.g.: Error:Cannot find module 'yourfile' For more information: link is here even the cyclic require() is explained very well..