Is it possible to "dissect" an answer using javascript?

Question

I was wondering if there was a way to find a variable within a given answer, for example if a variable is called "test" and someone answers a prompt with "thisisatest" the script would recognize the variable / word "test" within the answer, and perhaps even be able to execute a function. Sorry if my explanation might be confusing 😛

Answer 1

search for "test" in your input variable
https://www.w3schools.com/jsref/jsref_search.asp

Answer 2

Thanks!