从以下元素写入JSON文件夹

由陌若惜发布于 2020-05-09 08:29:27

我希望我可以从json文件夹中编译/放置以下项目。

const Discord = require ('discord.js');
const client = new Discord.Client();
const {prefix, token,} = require('./config.json');
const fs = require ('fs');

    client.login(token)

        client.on('message', message => {
        if(message.content.startsWith(prefix + "TC")) { //TC = team create

                var args = message.content.split(' ').join(' ').slice(4);
                if(!args) return message.channel.send("No")

                var TeamCreate = `{"NameTeam": "${args}", "ManagerTeam": ${message.author.id}}`

            fs.writeFile("./team.json", TeamCreate, (x) => {
                if (x) console.error(x)
              })}});

The json file will display : {"NameTeam": "teste","ManagerTeam": 481117441955463169}

而且我希望每次下订单时，json代码都不会删除而是添加。

例子： 1个第一订单= {“ NameTeam”：“ teste”，“ ManagerTeam”：481117441955463169} 2次订单= {“ NameTeam”：“ teste”，“ ManagerTeam”：481117441955463169}，{“ NameTeam”：“ teste2”，“ ManagerTeam”：1234567890}

先感谢您

Linda

2020-05-09 08:29:27

From what I understand, you want to make a json file that contains a list of teams.

The easy way to do that is to read and parse the json, make changes to it, and then stringify the jsonand update the file. Also, making json with strings is really messy and can lead to syntax errors, while in javascript turning js objects into json is as simple as doing JSON.stringify(javascriptObject)

尝试这样的事情：

const Discord = require('discord.js');
const client = new Discord.Client();
const { prefix, token, } = require('./config.json');
const fs = require('fs');

client.login(token)

client.on('message', message => {
    if (message.content.startsWith(prefix + "TC")) { //TC = team create

        var args = message.content.split(' ').join(' ').slice(4);
        if (!args) return message.channel.send("No")

        var team = {
            NameTeam: args,
            ManagerTeam: message.author.id
        }

        fs.readFile("./team.json", (err, data) => {
            if (!err && data) {
                var parsedJson;
                try {
                    parsedJson = JSON.parse(data);
                    //Make sure the parsedJson is an array
                    if (!(parsedJson instanceof Array)) {
                        parsedJson = [];
                    }
                }
                catch (e) {
                    console.log("Couldn't parse json.");
                    parsedJson = [];
                }
                finally {
                    //Add the newly created team to parsedJson
                    parsedJson.push(team);

                    //Write file, stringifying the json.
                    fs.writeFile("./team.json", JSON.stringify(parsedJson), (err) => {
                        if (!err) {
                            console.log("Successfully created team.");
                        }
                        else {
                            console.log("Error writing to file.")
                        }
                    });
                }
            }
            else {
                console.log("Error reading json");
            }
        });
    }
});

希望这会有所帮助，并祝你好运。

陌若惜

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