eslint

.eslintrc.json

@@ -0,0 +1,55 @@
+{
+    "root": true,
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": { "project": ["./tsconfig.json"] },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "@typescript-eslint/strict-boolean-expressions": [
+            2,
+            {
+                "allowString" : false,
+                "allowNumber" : false
+            }
+        ],
+        /* important */
+        "prefer-const": "error",
+        "quotes": ["error", "single"],
+
+        "block-scoped-var": "error",
+        "camelcase": "error",
+        "consistent-this": ["error", "that"],
+        "no-else-return": "error",
+        "no-eq-null": "error",
+        "no-floating-decimal": "error",
+        "no-implicit-coercion": "error",
+        "no-implied-eval": "error",
+        "no-invalid-this": "error",
+        "require-await": "error",
+        "yoda": "error",
+
+        "semi": ["error", "always"],
+        "semi-style": ["error", "last"],
+
+        /* less important */
+        "no-unreachable-loop": "error",
+        "no-unused-private-class-members": "error",
+        "no-use-before-define": "error",
+        "no-unmodified-loop-condition": "error",
+        "no-duplicate-imports": "error",
+        "no-promise-executor-return": "error",
+        "no-self-compare": "error",
+        "no-constructor-return": "error",
+        "no-template-curly-in-string": "error",
+        "array-callback-return": "error",
+        "no-eval": "error",
+        "no-extend-native": "error",
+        "no-extra-bind": "error"
+    },
+    "ignorePatterns": ["src/**/*.test.ts", "src/frontend/generated/*"]
+}

package.json

@@ -31,6 +31,7 @@
     "license": "MIT",
     "devDependencies": {
         "@types/node": "^17.0.17",
+        "@typescript-eslint/eslint-plugin": "^5.11.0",
         "discord-api-types": "^0.26.1",
         "npm-watch": "^0.11.0",
         "ts-node": "^10.4.0",

src/api.ts

@@ -1,3 +1,4 @@
+/*eslint prefer-const: "error"*/
 import * as cheerio from 'cheerio';
 import { CommandInteraction, MessageEmbed } from 'discord.js';
 import { IncomingMessage } from 'http';
@@ -12,7 +13,7 @@ const uniteApiRegex = {
         /lv\.(\d+) (\w+) \((\d+)\)/i,   //master
         /lv\.(\d+) (\w+): class (\d+)/i //other
     ]
-}
+};
 
 type uniteApiData = {
     name: string,
@@ -76,30 +77,30 @@ function getHTML(name: string): Promise<string> {
  * @throws errorMessage class if the request fails
  */
 function readHTML(html: string): uniteApiData {
-    let $ = cheerio.load(html)
-    let metaElems = $('meta').toArray(),
+    const $ = cheerio.load(html),
         foundData: uniteApiData = {
-            name: "",
-            id: "",
-            avatar: "",
+            name: '',
+            id: '',
+            avatar: '',
 
-            level: "",
-            rank: "",
+            level: '',
+            rank: '',
             elo: null,
             class: null,
-            battles: "",
-            wins: "",
-            winrate: ""
+            battles: '',
+            wins: '',
+            winrate: ''
         };
+    let metaElems = $('meta').toArray();
     
     //filter down to just ones named "og:..."
-    metaElems = metaElems.filter((el: cheerio.Element) => el.attribs.property?.startsWith('og:'));
+    metaElems = metaElems.filter(el => el.attribs.property?.startsWith('og:'));
 
-    metaElems.forEach((el: cheerio.Element) => {
-        let attr = el.attribs;
+    metaElems.forEach(el => {
+        const attr = el.attribs;
 
         if (attr.property === 'og:title') {
-            let data = uniteApiRegex.ogtitle.exec(attr.content);
+            const data = uniteApiRegex.ogtitle.exec(attr.content);
             if (data !== null && data.length >= 3) {
                 foundData.name = data[1];
                 foundData.id = data[2];
@@ -107,17 +108,17 @@ function readHTML(html: string): uniteApiData {
         } else if (attr.property === 'og:description') {
 
             //all lines
-            let lines = attr.content.split('\n').map((l: string) => l.trim()),
-                extraLines: string[] = [];
+            let lines = attr.content.split('\n').map(l => l.trim());
+            const extraLines: string[] = [];
 
             //ensure first line is correct
-            while (lines.length && !/pok.mon unite/i.test(lines[0])) {
-                let line = lines.shift();
-                if (line)
+            while ((lines.length > 0) && !/pok.mon unite/i.test(lines[0])) {
+                const line = lines.shift();
+                if (line !== undefined)
                     extraLines.push(line);
             }
 
-            if (!lines.length)
+            if (lines.length === 0)
                 throw emsg('Unable to read data, please try again');
             
             //bring the first lines removed back into the data
@@ -129,13 +130,12 @@ function readHTML(html: string): uniteApiData {
             //first line
             {
                 //will be only text after "pokemon unite:"
-                let line = lines[0].split(':').slice(1).join(':').trim();
-                
-                let regex = uniteApiRegex.ogdescription;
+                const line = lines[0].split(':').slice(1).join(':').trim(),
+                    regex = uniteApiRegex.ogdescription;
 
                 if (regex[0].test(line)) { //is master/has elo
 
-                    let regexData = line.match(regex[0]);
+                    const regexData = line.match(regex[0]);
 
                     if (!regexData || regexData.length < 4)
                         throw emsg('Unable to read data, please try again');
@@ -146,7 +146,7 @@ function readHTML(html: string): uniteApiData {
 
                 } else { //is not master/has a class
 
-                    let regexData = line.match(regex[1]);
+                    const regexData = line.match(regex[1]);
 
                     if (!regexData || regexData.length < 4)
                         throw emsg('Unable to read data, please try again');
@@ -162,9 +162,9 @@ function readHTML(html: string): uniteApiData {
             lines.shift();
             
             //rest of lines
-            lines.forEach((line: string) => {
+            lines.forEach(line => {
 
-                let split = line.split(':').map((l: string) => l.trim()),
+                const split = line.split(':').map(l => l.trim()),
                     key = split[0].toLowerCase().replace(/[^\w]/g, ''),
                     value = split[1];
 
@@ -186,7 +186,9 @@ function readHTML(html: string): uniteApiData {
 
     });
 
-    foundData.avatar = $('.player-card-image img').attr('src') || "";
+    const imgSrc = $('.player-card-image img').attr('src');
+
+    foundData.avatar = imgSrc !== undefined ? imgSrc : '';
     foundData.avatar = foundData.avatar.replace('../', 'https://uniteapi.dev/');
 
     return foundData;
@@ -199,7 +201,7 @@ function readHTML(html: string): uniteApiData {
  * @returns boolean, valid or invalid
  */
 function verifyData(data: uniteApiData): boolean {
-    if (data.id.length)
+    if (data.id.length > 0)
         return true;
     return false;
 }
@@ -210,8 +212,8 @@ function verifyData(data: uniteApiData): boolean {
  * @returns player data
  */
 export async function getPlayer(name: string): Promise<uniteApiData|null> {
-    let html = await getHTML(name);
-    let data = readHTML(html);
+    const html = await getHTML(name),
+        data = readHTML(html);
     if (verifyData(data))
         return data;
     return null;
@@ -219,13 +221,19 @@ export async function getPlayer(name: string): Promise<uniteApiData|null> {
 
 async function sendPlayerEmbed(interaction: CommandInteraction, data: uniteApiData) {
 
-    let embed = new MessageEmbed()
+    let eloStr: string;
+    if (data.elo !== null)
+        eloStr = `(${data.elo})`;
+    else
+        eloStr = `Class ${data.class}`;
+
+    const embed = new MessageEmbed()
         .setTitle(`${data.name} (${data.id})`)
         .setURL(`https://uniteapi.dev/p/${encodeURIComponent(data.name)}`)
         .setTimestamp()
         .setThumbnail(data.avatar)
         .setDescription(`Level ${data.level}
-${data.rank} ${data.elo ? `(${data.elo})` : `Class ${data.class}`}
+${data.rank} ${eloStr}
 
 **Battles** ${data.battles}
 **Wins** ${data.wins}
@@ -240,10 +248,10 @@ ${data.rank} ${data.elo ? `(${data.elo})` : `Class ${data.class}`}
  * @throws errorMessage class if the user cannot be found
  */
 export async function getPlayerInteraction(interaction: CommandInteraction) {
-    let username = interaction.options.getString('username', true);
+    const username = interaction.options.getString('username', true);
     await interaction.deferReply();
     
-    let data = await getPlayer(username);
+    const data = await getPlayer(username);
     if (data === null)
         throw emsg('api.noUser');
     else

src/discord.ts

@@ -1,3 +1,4 @@
+/* eslint-disable camelcase */
 import { REST } from '@discordjs/rest';
 import { Routes } from 'discord-api-types/v9';
 
@@ -45,8 +46,8 @@ const commands = [
             }
         ]
     }
-]/*,
-    commandNames = commands.map(c => c.name);*/
+];
+/*commandNames = commands.map(c => c.name);*/
 
 /**
  * register/reload commands on guild(s)

src/index.ts

@@ -3,7 +3,7 @@ import { Client, Intents } from 'discord.js';
 import * as fs from 'fs';
 import { getPlayerInteraction } from './api';
 import { registerCommands } from './discord';
-import { Lang } from './lang';
+import * as Lang from './lang';
 import { discordInit, QueueCommands } from './queue';
 import { errorMessage } from './util';
 const CLIENT = new Client({ intents: [Intents.FLAGS.GUILDS] });

src/lang.ts

@@ -26,7 +26,7 @@ const LANG: LangObjWhole = {
             discord: {
                 noQueue: 'There is not an active queue in this channel, type `/open` to create one',
                 noChannel: 'Unable to find channel {channelId} for teams of {teamsize}',
-                noCreate: 'There is already an active queue in this channel for teams of ${teamsize}',
+                noCreate: 'There is already an active queue in this channel for teams of {teamsize}',
                 inQueue: 'You are already in the queue',
                 notInQueue: 'You aren\'t in the queue',
                 notMod: 'Member is not a moderator'
@@ -45,64 +45,61 @@ const LANG: LangObjWhole = {
 
     }
 
-}
+};
 
-export namespace Lang {
 
-    var LANGID = 'en';
-    if (!(LANGID in LANG))
+let LANGID = 'en';
+if (!(LANGID in LANG))
+    throw 'language id does not exist';
+
+export function setLang(langid: string) {
+    if (langid in LANG)
+        LANGID = langid;
+    else
         throw 'language id does not exist';
+}
 
-    export function setLang(langid: string) {
-        if (langid in LANG)
-            LANGID = langid;
-        else
-            throw 'language id does not exist';
-    }
+function template(str: string, args: {[keys: string]: string}): string {
 
-    function template(str: string, args: {[keys: string]: string}): string {
+    return str.replace(/{\w+}/g, str => {
 
-        return str.replace(/{\w+}/g, str => {
+        const key = str.substring(1, str.length-1);
 
-            let key = str.substring(1, str.length-1);
+        if (key in args)
+            return args[key];
 
-            if (key in args)
-                return args[key];
+        return key;
 
-            return key;
-
-        });
-
-    }
-
-    /**
-     * reads language json
-     * @param id ex: discord.error.noActiveQueue
-     * @returns language value, defaults to `id` parameter
-     */
-    export function get(id: string, args: {[keys: string]: string} = {}): string {//discord.error.noActiveQueue
-        
-        let keySpl = id.split('.').map(k => k.trim()).filter(k => k);
-
-        let finding = LANG[LANGID];
-
-        for (let key of keySpl) {
-
-            if (key in finding) {
-
-                let found = finding[key];
-
-                if (typeof found === 'string')
-                    return template(found, args);
-
-                finding = found;
-
-            } else
-                break;
-            
-        }
-
-        return id;
-    }
+    });
 
 }
+
+/**
+ * reads language json
+ * @param id ex: discord.error.noActiveQueue
+ * @returns language value, defaults to `id` parameter
+ */
+export function get(id: string, args: {[keys: string]: string} = {}): string {//discord.error.noActiveQueue
+    
+    const keySpl = id.split('.').map(k => k.trim()).filter(k => k);
+
+    let finding = LANG[LANGID];
+
+    for (const key of keySpl) {
+
+        if (key in finding) {
+
+            const found = finding[key];
+
+            if (typeof found === 'string')
+                return template(found, args);
+
+            finding = found;
+
+        } else
+            break;
+        
+    }
+
+    return id;
+}

src/queue.ts

@@ -3,10 +3,10 @@
 join message should contain your current position in the queue, editing it to keep it current
 */
 
-import { Client, CommandInteraction, MessageEmbed, TextChannel } from "discord.js";
+import { Client, CommandInteraction, MessageEmbed, TextChannel } from 'discord.js';
 import * as fs from 'fs';
-import { emsg, getChannel, getMember, memberIsModThrow, queueInfo, queueInfoBase } from "./util";
-import { Lang } from './lang';
+import { emsg, getChannel, getMember, memberIsModThrow, queueInfo, queueInfoBase } from './util';
+import * as Lang from './lang';
 
 //load queues from file
 if (!fs.existsSync('./queues.json'))
@@ -17,22 +17,24 @@ const _QUEUE = fs.readFileSync('./queues.json').toString(),
 
 try {
 
-    let queueJson = JSON.parse(_QUEUE);
+    const queueJson = JSON.parse(_QUEUE);
 
-    for (let channelId in queueJson) {
-        let {teamsize} = queueJson[channelId] as queueInfoBase;
-        if (teamsize)
-            QUEUE.set(channelId, { teamsize, players: [] })
+    for (const channelId in queueJson) {
+        const {teamsize} = queueJson[channelId] as queueInfoBase;
+        if (teamsize !== 0)
+            QUEUE.set(channelId, { teamsize, players: [] });
     }
 
-} catch(e) {}
+} catch(e) {
+    //do nothing
+}
 
 function SaveQueue() {
 
-    let queueJson = Object.fromEntries(QUEUE),
+    const queueJson = Object.fromEntries(QUEUE),
         queueFileJson: {[keys: string]: queueInfoBase} = {};
 
-    for (let channelId of QUEUE.keys())
+    for (const channelId of QUEUE.keys())
         queueFileJson[channelId] = { teamsize: queueJson[channelId].teamsize };
     
     fs.writeFileSync('./queues.json', JSON.stringify(queueFileJson, null, 2));
@@ -40,17 +42,17 @@ function SaveQueue() {
 }
 
 async function checkQueue(channel: TextChannel) {
-    let info = QUEUE.get(channel.id);
+    const info = QUEUE.get(channel.id);
 
     if (!info)
         return;
     
     if (info.players.length >= info.teamsize) {
 
-        let team = info.players.splice(0, info.teamsize).map(m => m.toString());
+        const team = info.players.splice(0, info.teamsize).map(m => m.toString());
 
         //TODO add embeds to lang.ts
-        let embed = new MessageEmbed()
+        const embed = new MessageEmbed()
             .setTitle('Team')
             .setDescription(team.join('\n'));
 
@@ -59,35 +61,33 @@ async function checkQueue(channel: TextChannel) {
     }
 
 }
-namespace Queue {
     
-    export function create(channelId: string, teamsize: number) {
-        if (!QUEUE.has(channelId)) {
-            QUEUE.set(channelId, {teamsize, players: []});
-            SaveQueue();
-        }
+
+export function queueCreate(channelId: string, teamsize: number) {
+    if (!QUEUE.has(channelId)) {
+        QUEUE.set(channelId, {teamsize, players: []});
+        SaveQueue();
     }
+}
 
-    export function remove(channelId: string) {
-        if (QUEUE.has(channelId)) {
-            QUEUE.delete(channelId);
-            SaveQueue();
-        }
+export function queueRemove(channelId: string) {
+    if (QUEUE.has(channelId)) {
+        QUEUE.delete(channelId);
+        SaveQueue();
     }
-
 }
 
 SaveQueue();
 
 export async function discordInit(client: Client) {
 
-    for (let channelId of QUEUE.keys()) {
+    for (const channelId of QUEUE.keys()) {
 
-        let info = QUEUE.get(channelId),
+        const info = QUEUE.get(channelId),
             channel = await client.channels.fetch(channelId);
 
         if (!info) { //no idea what could cause this but TS complains
-            Queue.remove(channelId);
+            queueRemove(channelId);
             continue;
         }
 
@@ -96,7 +96,7 @@ export async function discordInit(client: Client) {
                 channelId,
                 teamsize: info.teamsize
             });
-            Queue.remove(channelId);
+            queueRemove(channelId);
             continue;
         }
 
@@ -105,160 +105,155 @@ export async function discordInit(client: Client) {
     }
         
 }
-export namespace QueueCommands {
 
-    /**
-     * get the queueInfo of an interaction
-     * @param interaction 
-     * @throws errorMessage class if it does not exist
-     * @returns queue info
-     */
-    function getInfo(interaction: CommandInteraction): queueInfo {
-        let info = QUEUE.get(interaction.channelId);
+/**
+ * get the queueInfo of an interaction
+ * @param interaction 
+ * @throws errorMessage class if it does not exist
+ * @returns queue info
+ */
+function getInfo(interaction: CommandInteraction): queueInfo {
+    const info = QUEUE.get(interaction.channelId);
 
-        if (!info)
-            throw emsg('discord.noQueue');
+    if (!info)
+        throw emsg('discord.noQueue');
 
-        return info;
-    }
+    return info;
+}
 
-    /**
-     * compiles all the get functions above
-     * @param interaction 
-     * @throws if another get function throws
-     * @returns object containing each
-     */
-    const getAll = (interaction: CommandInteraction) => ({
-            member: getMember(interaction),
-            channel: getChannel(interaction),
-            info: getInfo(interaction)
-        });
+/**
+ * compiles all the get functions above
+ * @param interaction 
+ * @throws if another get function throws
+ * @returns object containing each
+ */
+const getAll = (interaction: CommandInteraction) => ({
+        member: getMember(interaction),
+        channel: getChannel(interaction),
+        info: getInfo(interaction)
+    });
 
-    /**
-     * checks if the interaction data is already in the queue
-     * @param interaction 
-     * @returns boolean
-     */
-    export function queueContains(interaction: CommandInteraction): boolean {
+/**
+ * checks if the interaction data is already in the queue
+ * @param interaction 
+ * @returns boolean
+ */
+export function queueContains(interaction: CommandInteraction): boolean {
 
-        let {member, info} = getAll(interaction);
+    const {member, info} = getAll(interaction);
 
-        if (info.players.map(m=>m.id).includes(member.id))
-            return true;
+    if (info.players.map(m=>m.id).includes(member.id))
+        return true;
 
-        return false;
-
-    }
-
-    /**
-     * creates a queue from an interaction
-     * @param interaction 
-     * @throws errorMessage class if it cannot be left
-     */
-    export function queueCreate(interaction: CommandInteraction) {
-        memberIsModThrow(interaction);
-
-        let {channelId} = interaction,
-            teamsize = interaction.options.getInteger('teamsize', true);
-
-        let existing = QUEUE.get(channelId)
-        if (existing)
-            throw emsg(Lang.get('error.discord.noCreate', {
-                teamsize: existing.teamsize.toString()
-            }));
-
-        Queue.create(channelId, teamsize);
-
-        interaction.reply(Lang.get('discord.create', {
-            teamsize: teamsize.toString()
-        }))
-
-    }
-
-    /**
-     * opens a queue
-     * @param interaction 
-     * @throws errorMessage class if it cannot be left
-     */
-    export async function open(interaction: CommandInteraction) {
-
-        queueCreate(interaction);
-
-    }
-
-    /**
-     * closes a queue
-     * @param interaction 
-     * @throws errorMessage class if it cannot be joined
-     */
-    export async function close(interaction: CommandInteraction) {
-        memberIsModThrow(interaction);
-
-        QUEUE.delete(interaction.channelId);
-
-        await interaction.reply(Lang.get('discord.close'));
-
-    }
-
-    /**
-     * gives info about the queue
-     * @param interaction 
-     * @throws errorMessage class if it cannot be left
-     */
-    export async function queue(interaction: CommandInteraction) {
-
-        let info = getInfo(interaction);
-
-        let embed = new MessageEmbed()
-            .setTitle('Active Queue')
-            .addField('Team Size', info.teamsize.toString(), true)
-            .addField('Players Joined', info.players.length.toString(), true)
-            .setFooter({text: 'type /join'}); //TODO
-
-        await interaction.reply({embeds: [embed], ephemeral: true});
-
-    }
-
-    /**
-     * joins a queue
-     * @param interaction 
-     * @throws errorMessage class if it cannot be readied
-     */
-    export async function join(interaction: CommandInteraction) {
-
-        let {member, info, channel} = getAll(interaction);
-
-        if (queueContains(interaction))
-            throw emsg('discord.inQueue');
-
-        info.players.push(member);
-
-        QUEUE.set(interaction.channelId, info);
-
-        await interaction.reply(Lang.get('discord.join'));
-
-        checkQueue(channel);
-
-    }
-
-    /**
-     * leaves a queue
-     * @param interaction 
-     * @throws errorMessage class if it cannot be reset
-     */
-    export async function leave(interaction: CommandInteraction) {
-
-        let {member, info} = getAll(interaction);
-
-        if (!queueContains(interaction))
-            throw emsg('discord.notInQueue');
-
-        info.players.splice(info.players.indexOf(member), 1);
-
-        QUEUE.set(interaction.channelId, info);
-
-        await interaction.reply(Lang.get('discord.leave'));
-        
-    }
+    return false;
 
 }
+
+/**
+ * opens a queue
+ * @param interaction 
+ * @throws errorMessage class if it cannot be left
+ */
+function open(interaction: CommandInteraction) {
+
+    memberIsModThrow(interaction);
+
+    const {channelId} = interaction,
+        teamsize = interaction.options.getInteger('teamsize', true);
+
+    const existing = QUEUE.get(channelId);
+    if (existing)
+        throw emsg(Lang.get('error.discord.noCreate', {
+            teamsize: existing.teamsize.toString()
+        }));
+
+    queueCreate(channelId, teamsize);
+
+    interaction.reply(Lang.get('discord.create', {
+        teamsize: teamsize.toString()
+    }));
+
+}
+
+/**
+ * closes a queue
+ * @param interaction 
+ * @throws errorMessage class if it cannot be joined
+ */
+async function close(interaction: CommandInteraction) {
+    memberIsModThrow(interaction);
+
+    QUEUE.delete(interaction.channelId);
+
+    await interaction.reply(Lang.get('discord.close'));
+
+}
+
+/**
+ * gives info about the queue
+ * @param interaction 
+ * @throws errorMessage class if it cannot be left
+ */
+async function queue(interaction: CommandInteraction) {
+
+    const info = getInfo(interaction);
+
+    const embed = new MessageEmbed()
+        .setTitle('Active Queue')
+        .addField('Team Size', info.teamsize.toString(), true)
+        .addField('Players Joined', info.players.length.toString(), true)
+        .setFooter({text: 'type /join'}); //TODO
+
+    await interaction.reply({embeds: [embed], ephemeral: true});
+
+}
+
+/**
+ * joins a queue
+ * @param interaction 
+ * @throws errorMessage class if it cannot be readied
+ */
+async function join(interaction: CommandInteraction) {
+
+    const {member, info, channel} = getAll(interaction);
+
+    if (queueContains(interaction))
+        throw emsg('discord.inQueue');
+
+    info.players.push(member);
+
+    QUEUE.set(interaction.channelId, info);
+
+    await interaction.reply(Lang.get('discord.join'));
+
+    checkQueue(channel);
+
+}
+
+/**
+ * leaves a queue
+ * @param interaction 
+ * @throws errorMessage class if it cannot be reset
+ */
+async function leave(interaction: CommandInteraction) {
+
+    const {member, info} = getAll(interaction);
+
+    if (!queueContains(interaction))
+        throw emsg('discord.notInQueue');
+
+    info.players.splice(info.players.indexOf(member), 1);
+
+    QUEUE.set(interaction.channelId, info);
+
+    await interaction.reply(Lang.get('discord.leave'));
+    
+}
+
+export const QueueCommands = {
+    open,
+    close,
+    queue,
+    join,
+    leave
+};

src/util.ts

@@ -1,5 +1,5 @@
-import { CommandInteraction, GuildMember, TextChannel } from "discord.js";
-import { Lang } from "./lang";
+import { CommandInteraction, GuildMember, TextChannel } from 'discord.js';
+import * as Lang from './lang';
 
 /**
  * shuffles an array
@@ -7,6 +7,7 @@ import { Lang } from "./lang";
  * @param array an array
  * @returns an array but shuffled
  */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
 export function shuffle(array: any[]) {
     let currentIndex = array.length,  randomIndex;
 
@@ -31,7 +32,7 @@ export class errorMessage {
     public msg: string;
     public ephemeral: boolean;
 
-    constructor(msg: string, ephemeral: boolean = true) {
+    constructor(msg: string, ephemeral = true) {
         this.msg = msg;
         this.ephemeral = ephemeral;
     }
@@ -43,7 +44,7 @@ export class errorMessage {
  * @param ephemeral (default=true)
  * @returns new errorMessage
  */
-export const emsg = (msg: string, ephemeral: boolean = true) => new errorMessage(Lang.get(`error.${msg}`), ephemeral);
+export const emsg = (msg: string, ephemeral = true) => new errorMessage(Lang.get(`error.${msg}`), ephemeral);
 
 
 
@@ -61,7 +62,7 @@ export interface queueInfo extends queueInfoBase{
  * @returns member
  */
 export function getMember(interaction: CommandInteraction): GuildMember {
-    let member = interaction.member;
+    const member = interaction.member;
 
     if (!(member instanceof GuildMember))
         throw emsg('general.noMember');
@@ -76,7 +77,7 @@ export function getMember(interaction: CommandInteraction): GuildMember {
  * @returns member
  */
 export function getChannel(interaction: CommandInteraction): TextChannel {
-    let channel = interaction.channel;
+    const channel = interaction.channel;
 
     if (!(channel instanceof TextChannel))
         throw emsg('general.noChannel');
@@ -86,7 +87,7 @@ export function getChannel(interaction: CommandInteraction): TextChannel {
 
 
 export function memberIsMod(interaction: CommandInteraction): boolean {
-    let member = getMember(interaction);
+    const member = getMember(interaction);
     return member.permissionsIn(interaction.channelId).has('MANAGE_MESSAGES');
 }