Slack - Multiple channels message

slack-multiple.scpt

set myChannels to {"random"} # Populate this field

set theResponse to display dialog "What's your message?" default answer "" with icon note buttons {"Cancel", "Continue"} default button "Continue"
set theMessage to text returned of theResponse

tell application "Slack"
	activate
	tell application "System Events"
		
		repeat with theChannel in myChannels
			
			keystroke "k" using {command down}
			delay 0.5
			keystroke theChannel
			delay 0.5
			key code 36
			delay 0.5
			
			
			keystroke theMessage
			delay 0.2
			key code 36
			delay 0.2
			key code 36
			
		end repeat
		
	end tell
end tell