"Can you append an element to an array in Javascript?"
"I've heard that it's possible but IANAP."
"You should ask a licensed programmer."
"It's clearly possible... except when not."
"Whoa whoa slow down there, an array has a start and and end, and they could be the same, and clearly 'adding' an element to it is beyond your non-specialist mind."
"It seems like it should be routine."
"AHA but out of mem"