If statement for message sender

[jafix]

Is it possible to make an if statement like

client.on('friendMessage', function (steamID, message) {

    if (message.match('!logoff') {

        if (steamID == 76...) {
        client.sendMessage(steamID, 'logging off.')
        client.logOff();

        } else {
            client.sendMessage(steamID, 'Sorry, this is an owner-only command'
        }
    }
});

I just quickly made this script so if there are some errors, I didn't try exactly this script but i tried a script very similar. This part was the same:

if (steamID == 76...) {

And if there's an option it should be easy to make allow everyone except for 1 steamid/user by just changing == in !== right.

Edited March 7, 2017 by jafix

[Dr. McKay]

1. steamID is a SteamID object. If you want the 64-bit ID, use steamID.getSteamID64()

2. JavaScript can't precisely track numbers that are larger than 2⁵³. You need to wrap it in quotes to make it a string for comparison.
3. Correct regarding == and !=.