What would the keystrokes be using the keyboard?
for link 1 tab tab tab tab… then enter
jsfiddle: ctrl + enter
It is not guaranteed to be the same on every interface, but for many online editors (including freeCodeCamp lessons) Ctrl+Enter (or Cmd+Enter on Macs) will run the code. For some, you can also find an option that will automatically run it when you make changes. I believe that both CodePen and JSBin do this by default.