3 回答

TA貢獻1862條經(jīng)驗 獲得超6個贊
require

TA貢獻1806條經(jīng)驗 獲得超8個贊
module.exports
module.exports.instance = new ClassA()
a.js
, module.exports.ClassB = ClassB
b.js
module.exports
module.exports

TA貢獻1868條經(jīng)驗 獲得超4個贊
app
var ClassA = function(){};var ClassB = require('classB'); //will require ClassA, which has no exports yetmodule.exports = ClassA;
var ClassA = module.exports = function(){};var ClassB = require('classB');
app
var express = require('express');var app = module.exports = express();// load in other dependencies, which can now require this file and use app
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