JavaScript JavaScript Arrays Multidimensional Arrays Improve the Quiz – One Solution

why does my quiz stops asking questions after I type a correct answer? https://teamtreehouse.com/workspaces/41835200#

https://teamtreehouse.com/workspaces/41835200#

keep getting the below error, however it's same as video's. quiz.js:28 Uncaught TypeError: Assignment to constant variable. at quiz.js:28