I’m not sure what you’re asking from your post. Are you trying to run this function from the dev console in Chrome?
You can use http://repl.it
Hit F12 or Ctrl + Shift + J, a console window will pop up. Paste your code there.
Not in the console. It should be exactly on the screen
considering you’re using Atom, you could also look into the Atom package called script
Thank you for information
Sorry for stupid question =( I forgot to call the function…
I’m using https://jsfiddle.net/ for testing