2017-06-17 105 views
0

我想要一个方便的“节点外壳”来加载一些常用的模型,以便我可以与它们和数据库进行交互。似乎node inspect app_shell.js无法导入(require)脚本,同时声称已这样做。node debug/inspect require returns undefined

文件结构:

./test 
    app_shell.js 
    user.js 

app_shell.js内容:

console.log("Script loads useful models for manual interaction in shell."); 
var User = require("./user"); 
debugger; 

user.js内容:

"use strict"; 
Object.defineProperty(exports, "__esModule", { value: true }); 
exports.User = {some: "user"}; 

运行app_shell.js与调试:

$ node inspect app_shell.js 
< Debugger listening on ws://127.0.0.1:9229/5f48d8f1-a77b-4a1c-838e-7fb51a3b3337 
< For help see https://nodejs.org/en/docs/inspector 
< Debugger attached. 
Break on start in app_shell.js:1 
> 1 (function (exports, require, module, __filename, __dirname) { console.log("Script loads useful models for manual interaction in shell."); 
    2 var User = require("./user"); 
debug> repl 
Press Ctrl + C to leave debug repl 
> User 
undefined 
> User = require("./user"); 
undefined 
> User 
{ User: Object, __esModule: true } 

必须有一些我微不足道的小事。

回答

0

节点调试已启动,但尚未运行该文件。当您键入repl时,它不会在调试点输入文件,而是在顶部输入。 var User ...已导致User被宣布但未初始化,因此undefined的值。

解决方案:

c继续你的debugger点,然后repl启动REPL会话。