Run

The selected code of the whole code

Inspect

The Inspect option executes the code just like the Run option; however, after the code returns, an object inspector is opened to let you examine the returned value.

Display

REPL: The Display option executes the selected code, then inserts the result directly into your Scratchpad editor window as a comment.

1+1
/*
2
*/

Reload And Run

See Execute menu. It first reloads the page, then executes the code when the page's “load” event fires.