If you have a Google account, you can save this code to your Google Drive.
Google will ask you to confirm Google Drive access.
Save file as:
If you have saved a file to Google Drive, you can open it here:
Click on "My Button" to display its value attribute.
Click on "Try it" to change the value attribute of "My Button".
Tip: Click on "My Button" before and after you have clicked on "Try it".