Question

我正在使用express和Discord.js。

website.js

const express = require("express");
const app = express();
//...
ap.get("/testpage/:guildID", checkAuth, (req, res) => {
  const guild = client.guilds.get(req.params.guildID); //get the guild object which holds further object maps
  //console.log(guild) output is expected with this console log
  //I made the guildRoles since I thought maybe I had to send the roles map instead of the guild object, but it does not work either
  const guildRoles = guild.roles;
  //console.log(guildRoles) has expected output
  renderTemplate(res, req, "configure.ejs", {guild, guildRoles});
};

configure.ejs

//...
<script>
  //...
  function testFunction() {
    let guildRolesVar = <%- guildRoles %>;
    console.log(guildRolesVar);
    //this outputs an empty object, {}, when it should return {...} ... with data in it
    //same with <%- guild %>, however, it does return data, however, object maps are empty (same as above), but things that are not maps 
  };
</script>

我希望对象映射数据能够通过，但是不会通过，我也不知道为什么。 guild结构是：

Guild {
  roles:
    Collection [Map] {
      '1111111111111110' => Role {
        guild: [Circular],
        id: '1111111111111110',
        name: '@testRole' },
      '1837219387129378' => Role {
        guild: [Circular],
        id: '1837219387129378',
        name: '@anotherRole' } },
  name: 'the guild name',
  id: '12103981203980',
}

如您所见，行会对象还有其他对象映射。当我在app.get(...)中使用console.log行会对象时，它会输出完整的数据而不会丢失任何内容。但是，当我通过对象时，角色对象为空（{}）。

为什么会发生这种情况，如何获取完整数据？

Answer 1

这很可能发生，因为express将对它们进行JSON stringify（），并且因为discord.js对象具有循环引用，所以它们将为{}。一种可能的解决方案是使用d.js master / v12，从而允许在其对象上使用JSON.stringify（）。

通过快速参数发送地图后，地图将为空

1 个答案: