Feature request: contains

[lynn0032]

It would be very helpful to be able to write a condition using "contains". That is, I would like to be able to make conditional content where the condition is: if a number is in a numList (or math in mathList, or text in TextList), ...(conditional content)...

I think I've run into this before, but most recently this came up when making an activity for a student to enter an adjacency list for a graph, and then Doenet would automatically update an adjacency matrix and picture of the graph, so that the student could see what their adjacency list describes. I have a workaround for the graph, but for the adjacency matrix I essentially need to make the (i,j)th entry 1 if j is in the list of neighbors for i (which students input, and then is converted to a mathList or numList), and 0 otherwise. Here's where this shows up: https://www.doenet.org/portfolioviewer/_g6Cpdm4Rn4NzXQDLJEGTM