Question

不确定我在这里做错了什么？

错误：

/Users/user/node/app.js:3
makeRequest("Here's looking at you, kid");
^
TypeError: object is not a function
    at Object.<anonymous> (/Users/user/node/app.js:3:1)
    at Module._compile (module.js:449:26)
    at Object.Module._extensions..js (module.js:467:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Module.runMain (module.js:492:10)
    at process.startup.processNextTick.process._tickCallback (node.js:244:9)

app.js

var makeRequest = require('./make_request');

makeRequest("Here's looking at you, kid");
makeRequest("Hello, this is dog");

make_request.js

var http = require('http');

var makeRequest = function(message) {

    //var message = "Here's looking at you, kid.";
    var options = {
        host: 'localhost', port:8080, path: '/', method: 'POST'
    }

    var request = http.request(options, function(response) {
        response.on('data', function(data) {
            console.log(data);
        });
    });
    request.write(message);
    request.end();
};

exports = makeRequest;

Answer 1

要将function作为模块对象返回，请将其设置为module.exports：

module.exports = makeRequest;

exports只是module.exports的便利副本。

Answer 2

您需要调用该函数。

makeRequest.makeRequest("Your message");

您还可以通过以下方式简化代码：

module.exports.makeRequest = function(message) {
    //... 
};

Answer 3

我相信您正在app.js的第一行导入命名空间。该命名空间是make_request。而且您还尝试调用名为makeRequest的函数，该函数位于命名空间make_request中。试试这个：

makeRequest.makeRequest("message"); on line 3 and 4 of app.js

我的简单node.js函数出了什么问题？

3 个答案: