我想编写自己的函数,例如:
own_function.js:
module.exports = function(req, res, next){
var js_object;
// Do some stuff with above javascript object
// After I want to attach "js_object" to request object:
req.js = js_object;
next();
// also tried next(req, res);
}
我想在不同的文件中使用这个函数,例如"main.js"文件:
main.js:
var own_function = require(__dirname + '/own_function');
own_function(req, res, function(){
// Also tried own_function(req, res, function(req, res){
console.log(req.js_object);
});
它不起作用我得到了未定义的对象。我认为这只是语法问题,但我不知道什么是正确的语法,请帮助我。谢谢。
在main.js
中,您调用console.log(req.js_object);
,但在own_function.js
中,您设置的是req.js
,而不是req.js_object
。这两件事需要匹配。我建议更改main.js
:
var own_function = require(__dirname + '/own_function');
own_function(req, res, function(){
console.log(req.js); // was req.js_object
});