未捕获的ReferenceError:(给定函数)没有定义

I am having issues getting a button click to call a function. In my code I tried 2 different ways of getting the button to call the function, no luck. Currently, am using onclick to call the function that simply logs a string, but I get a “Uncaught ReferenceError: camCapture is not defined” error in the console.I am having issues getting a button click to ca