Reduce memory usage by dynamically creating Dates

src/structures/Guild.js

@@ -260,11 +260,7 @@ class Guild {
      * @type {Boolean}
      */
     this.large = data.large;
-    /**
+    this._joinDate = new Date(data.joined_at).getTime();
-     * The date at which the logged-in client joined the guild.
-     * @type {Date}
-     */
-    this.joinDate = new Date(data.joined_at);
     /**
      * The hash of the guild icon, or null if there is no icon.
      * @type {?String}
@@ -359,6 +355,13 @@ class Guild {
       }
     }
   }
+  /**
+   * The date at which the logged-in client joined the guild.
+   * @type {Date}
+   */
+  get joinDate() {
+    return new Date(this._joinDate);
+  }
 
   /**
    * Creates a new Channel in the Guild.

src/structures/GuildMember.js

@@ -59,11 +59,7 @@ class GuildMember {
      * @type {?String}
      */
     this.voiceChannelID = data.channel_id;
-    /**
+    this._joinDate = new Date(data.joined_at).getTime();
-     * The date this member joined the guild
-     * @type {Date}
-     */
-    this.joinDate = new Date(data.joined_at);
     /**
      * Whether this meember is speaking
      * @type {?Boolean}
@@ -77,6 +73,14 @@ class GuildMember {
     this._roles = data.roles;
   }
 
+  /**
+   * The date this member joined the guild
+   * @type {Date}
+   */
+  get joinDate() {
+    return new Date(this._joinDate);
+  }
+
   /**
    * A list of roles that are applied to this GuildMember
    * @type {Array<Role>}

src/structures/Invite.js

@@ -47,12 +47,7 @@ class Invite {
      * @type {String}
      */
     this.code = data.code;
-
+    this._creationDate = new Date(data.created_at).getTime();
-    /**
-     * The creation date of the invite
-     * @type {Date}
-     */
-    this.creationDate = new Date(data.created_at);
 
     /**
      * Whether or not this invite is temporary
@@ -93,6 +88,14 @@ class Invite {
     this.channels = this.client.channels.get(data.channel.id) || new PartialGuildChannel(this.client, data.channel);
   }
 
+  /**
+   * The creation date of the invite
+   * @type {Date}
+   */
+  get creationDate() {
+    return new Date(this._creationDate);
+  }
+
   /**
    * Deletes this invite
    * @returns {Promise<Invite, Error>}

src/structures/Message.js

@@ -55,16 +55,8 @@ class Message {
      * @type {String}
      */
     this.content = data.content;
-    /**
+    this._timestamp = new Date(data.timestamp).getTime();
-     * When the message was sent
+    this._editedTimestamp = data.edited_timestamp ? new Date(data.edited_timestamp).getTime() : null;
-     * @type {Date}
-     */
-    this.timestamp = new Date(data.timestamp);
-    /**
-     * If the message was edited, the timestamp at which it was last edited
-     * @type {?Date}
-     */
-    this.editedTimestamp = data.edited_timestamp ? new Date(data.edited_timestamp) : null;
     /**
      * Whether or not the message was Text-To-Speech
      * @type {Boolean}
@@ -147,6 +139,21 @@ class Message {
       this.system = true;
     }
   }
+  /**
+   * When the message was sent
+   * @type {Date}
+   */
+  get timestamp() {
+    return new Date(this._timestamp);
+  }
+
+  /**
+   * If the message was edited, the timestamp at which it was last edited
+   * @type {?Date}
+   */
+  get editedTimestamp() {
+    return new Date(this._editedTimestamp);
+  }
 
   patch(data) {
     if (data.author) {
@@ -159,10 +166,10 @@ class Message {
       this.content = data.content;
     }
     if (data.timestamp) {
-      this.timestamp = new Date(data.timestamp);
+      this._timestamp = new Date(data.timestamp).getTime();
     }
     if (data.edited_timestamp) {
-      this.editedTimestamp = data.edited_timestamp ? new Date(data.edited_timestamp) : null;
+      this._editedTimestamp = data.edited_timestamp ? new Date(data.edited_timestamp).getTime() : null;
     }
     if ('tts' in data) {
       this.tts = data.tts;
@@ -247,8 +254,8 @@ class Message {
 
     if (base && rawData) {
       base = this.mentions.everyone === message.mentions.everyone &&
-        this.timestamp.getTime() === new Date(rawData.timestamp).getTime() &&
+        this._timestamp === new Date(rawData.timestamp).getTime() &&
-        this.editedTimestamp === new Date(rawData.edited_timestamp).getTime();
+        this._editedTimestamp === new Date(rawData.edited_timestamp).getTime();
     }
 
     return base;

test/random.js

@@ -4,7 +4,7 @@ const Discord = require('../');
 const request = require('superagent');
 const fs = require('fs');
 
-const client = new Discord.Client({ fetch_all_members: false });
+const client = new Discord.Client({ fetch_all_members: true });
 
 const { email, password, token } = require('./auth.json');