mstralka (9) [Avatar] Offline
#1
These lines should be reversed. They are correct in the completed example on GitHub:

if (clippings.includes(clipping)) return;
const clipping = clipboard.readText();

should be:
const clipping = clipboard.readText();
if (clippings.includes(clipping)) return;
Steve Kinney (19) [Avatar] Offline
#2
Good catch! I must've mixed it up in Word. Thanks!