一、调用本js文件中的函数

var http = require('http');http.createServer(function (request,response){ response.writeHead(200, {'Contet-Type':'text/html;charset=utf-8'}); if(request.url!=='/favicon.ico'){ funl(response); response.end(''); } }).listen(8000);console.log('Server running at http://127.0.0.1:8000/');function funl(res){ console.log('fun1'); res.write('hello ,我是fun1');}

运行结果：

二、调用外部的js文件

function fun2(res){ console.log('我是,fun2'); res.write('你好我是fun2');}// 想把此js声明为一个函数，加下面代码，只适用于文件中只有一个函数module.exports = fun2;var http = require('http');// ortherFun 就代替了fun2var ortherFun = require('./../otherjs/out.js');http.createServer(function (request,response){ response.writeHead(200, {'Contet-Type':'text/html;charset=utf-8'}); if(request.url!=='/favicon.ico'){ // funl(response); ortherFun(response); response.end(''); } }).listen(8000);console.log('Server running at http://127.0.0.1:8000/');function funl(res){ console.log('fun1'); res.write('hello ,我是fun1');}

外部js文件内有多个函数

// 支持多个函数module.exports={ fun2:function(res){ console.log('我是fun2'); res.write('你好，我是fun2'); }, fun3:function(res){ console.log('我是fun3'); res.write('你好，我是fun3'); }}var http = require('http');var ortherFun = require('./../otherjs/out.js');http.createServer(function (request,response){ response.writeHead(200, {'Contet-Type':'text/html;charset=utf-8'}); if(request.url!=='/favicon.ico'){ // funl(response); // ortherFun(response); ortherFun.fun2(response); ortherFun.fun3(response); response.end(''); } }).listen(8000);console.log('Server running at http://127.0.0.1:8000/');function funl(res){ console.log('fun1'); res.write('hello ,我是fun1');}

用字符串调用对应的函数

var http = require('http');var ortherFun = require('./../otherjs/out.js');http.createServer(function (request,response){ response.writeHead(200, {'Contet-Type':'text/html;charset=utf-8'}); if(request.url!=='/favicon.ico'){ // funl(response); // ortherFun(response); //ortherFun.fun2(response); //ortherFun.fun3(response); // 用字符串调用对应的函数 //ortherFun['fun2'](response); //ortherFun['fun3'](response); // 还可以写成下面这样 funname = 'fun2'; ortherFun[funname](response); response.end(''); } }).listen(8000);console.log('Server running at http://127.0.0.1:8000/');function funl(res){ console.log('fun1'); res.write('hello ,我是fun1');}

总结

以上所述是小编给大家介绍的nodejs中函数的调用实例详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！