Javascript Undefined

AlleGifferMærkaterMemes
a pair of hearts with the word javascript on one
a computer screen shows where to get apps
Be Happy GIF
enough is enough is written on a picture of a person
a woman is sitting in a classroom with the words `` knowledge is power '' behind her .
a close up of a man 's face with the words " i 'm being torn apart "
a man sitting in front of a computer with the words undefined is not a function
a cartoon duck wearing a hat and the words josh is online behind it
three women in silver jumpsuits with the words null and void above them
a man in a polka dot shirt stands in front of a park with the word confidence written on the bottom
a cat is holding a knife next to a picture of a girl