Proper Ctrl + C on infinite bash loop

whiletrue.sh

#!/usr/bin/env bash

#The exit status of a command that terminated because it received a signal shall be reported as greater than 128.
#For example if you interrupt a command with control-C the exit code will be 130, because SIGINT is signal 2 on Unix systems. So:
#source: https://unix.stackexchange.com/questions/42287/terminating-an-infinite-loop

while [ 1 ]; do 
  echo 1 #do the thing 
  sleep 1
  test $? -gt 128 && break; 
done