在 node.js 上添加外部 javascript 文件
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Adding external javascript files on node.js
提问by Masiar
I have a node server and I want to add an external .js file (say something.js). I have this code for now:
我有一个节点服务器，我想添加一个外部 .js 文件（比如something.js）。我现在有这个代码：
var st = require('./js/something');
var st = require('./js/something');
Where something.jsis the JavaScript file inside a /js/folder. The server compiles and run, but when I try to use functions defined in something.jsnode tells me they are not defined.
something.js文件/js/夹中的 JavaScript 文件在哪里。服务器编译并运行，但是当我尝试使用something.jsnode 中定义的函数时，告诉我它们没有定义。
I also tried to run them using like st.s()but nothing happens and I have an error saying that the object has no method s().
我也尝试使用 like 运行它们，st.s()但没有任何反应，我有一个错误，说该对象没有方法s()。
Can anyone help me?
谁能帮我？
Thanks,
谢谢，
EDIT:
编辑：
logging stgives {}(I obtain it from console.log(JSON.stringify(st)). Also doing console.log(st)gives {}as result.
日志记录st给出{}（我从 获得它console.log(JSON.stringify(st))。也做console.log(st)给出{}了结果。
The content of something.jsis just a bunch of functions defined like this
的内容something.js只是一堆这样定义的函数
function s() {
alert("s");
}
function t() {
alert("t");
}
回答by DHamrick
Node.js uses the CommonJSmodule format. Essentially values that are attached to the exportsobject are available to users of the module. So if you are using a module like this
Node.js 使用CommonJS模块格式。本质上，附加到exports对象的值可供模块用户使用。所以如果你使用这样的模块
var st = require('./js/something');
st.s();
st.t();
Your module has to export those functions. So you need to attach them to the exports object.
您的模块必须导出这些函数。因此，您需要将它们附加到导出对象。
exports.s = function () {
console.log("s");
}
exports.t = function () {
console.log("t");
}
