nodejs中函数的调用实例详解
程序员文章站
2022-04-25 17:29:52
一、调用本js文件中的函数
var http = require('http');
http.createserver(function (request,re...
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fun2 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); 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