Switch to for-range loops for cleaner syntax

discordo.go

@@ -112,7 +112,7 @@ func onGuildCreate(guild *gateway.GuildCreateEvent) {
 
 func onReady(ready *gateway.ReadyEvent) {
 	guilds = ready.Guilds
-	for i := 0; i < len(guilds); i++ {
+	for i := range guilds {
 		guildsDropDown.AddOption(guilds[i].Name, nil)
 	}
 }
@@ -134,7 +134,7 @@ func onGuildsDropDownSelected(text string, _ int) {
 		messageInputField = nil
 	}
 
-	for i := 0; i < len(guilds); i++ {
+	for i := range guilds {
 		guild := guilds[i]
 		if guild.Name == text {
 			currentGuild = guild
@@ -142,7 +142,7 @@ func onGuildsDropDownSelected(text string, _ int) {
 		}
 	}
 
-	for i := 0; i < len(currentGuild.Channels); i++ {
+	for i := range currentGuild.Channels {
 		channel := currentGuild.Channels[i]
 		channelsList.AddItem(channel.Name, "", 0, nil)
 	}

util/discord.go

@@ -30,11 +30,8 @@ func WriteMessage(messagesTextView *tview.TextView, message discord.Message) {
 	}
 
 	attachments := message.Attachments
-	attachmentsLen := len(attachments)
-	if attachmentsLen > 0 {
-		for i := 0; i < attachmentsLen; i++ {
-			content.WriteString("\n" + attachments[i].URL)
-		}
+	for i := range attachments {
+		content.WriteString("\n" + attachments[i].URL)
 	}
 
 	fmt.Fprintln(messagesTextView, content.String())