Syntax

• use -- for comments

tell

• sets the scope of a block

tell tab 0 of window 0
    set tabName to the title
    set tabURL to the url
end tell

-- equivalent to

set tabName to the title of tab 0 of window 0
set tabURL to the url of tab 0 of window 0

repeat

set tabCount to the number of tabs in window 0
repeat with t from 1 to tabCount
    -- do stuff
end repeat

Snippets

Get name of focused app

global frontAppName

tell application "System Events"
    set frontAppName to name of first application process whose frontmost is true
end tell

return {frontAppName}

Check if app is focused

tell application "Safari"
    if frontmost then
        -- do stuff
    end if
end tell