Cleanup Part 2: Electric Boogaloo (Reloaded) (#594)

* Cleanup Part 2: Electric Boogaloo (Reloaded)

* Moar cleanup

* Tweak NOT_A_PERMISSION error

src/client/Client.js

@@ -15,10 +15,8 @@ const Collection = require('../util/Collection');
  * @extends {EventEmitter}
  */
 class Client extends EventEmitter {
-
   /**
-   * Creates an instance of Client.
-   * @param {ClientOptions} [options] options to pass to the client
+   * @param {ClientOptions} [options] Options for the client
    */
   constructor(options) {
     super();
@@ -129,17 +127,13 @@ class Client extends EventEmitter {
    * client.login(email, password);
    */
   login(emailOrToken, password) {
-    if (password) {
-      // login with email and password
-      return this.rest.methods.loginEmailPassword(emailOrToken, password);
-    }
-    // login with token
+    if (password) return this.rest.methods.loginEmailPassword(emailOrToken, password);
     return this.rest.methods.loginToken(emailOrToken);
   }
 
   /**
-   * Destroys the client and logs out. Resolves with null if successful.
-   * @returns {Promise<null, Error>}
+   * Destroys the client and logs out.
+   * @returns {Promise}
    */
   destroy() {
     return new Promise((resolve, reject) => {
@@ -152,8 +146,7 @@ class Client extends EventEmitter {
         this._timeouts = [];
         this._intervals = [];
         resolve();
-      })
-      .catch(reject);
+      }).catch(reject);
     });
   }
 
@@ -176,7 +169,7 @@ class Client extends EventEmitter {
   /**
    * This shouldn't really be necessary to most developers as it is automatically invoked every 30 seconds, however
    * if you wish to force a sync of Guild data, you can use this. Only applicable to user accounts.
-   * @param {array<Guild>} [guilds=this.guilds.array()] An array of guilds to sync.
+   * @param {Guild[]} [guilds=this.guilds.array()] An array of guilds to sync
    */
   syncGuilds(guilds = this.guilds.array()) {
     if (!this.user.bot) {
@@ -215,7 +208,6 @@ class Client extends EventEmitter {
   get uptime() {
     return this.readyTime ? Date.now() - this.readyTime : null;
   }
-
 }
 
 module.exports = Client;