Make Twitter recognize the <enter> key to post tweets?

Question

Is it possible to make the enter key submit a tweet automatically on Twitter?

If so, how?

Answer 1

It is not possible to use enter to submit the new tweet on Twitter.com. By default it creates a line break, even if line breaks are not displayed by Twitter.com and most apps.

The fastest way to post a tweet using your keyboard is the following:

1. Press n for new tweet on your Twitter home page
2. Write your tweet content
3. Press tab and then enter to post it

Answer 2

Here's the solution I came up with (thanks to this post). You can download the full Greasemonkey script here.

setInterval (function() { checkForTweetbox (); }, 500);

function checkForTweetbox () {
    var tweetbox = document.querySelector ('div.tweet-box textarea');   //check for new tweet window
    if (tweetbox) {
        if (! tweetbox.weHaveProcessed) {
            tweetbox.weHaveProcessed    = true;
//          alert ('New tweet-box found!');
        }
    }   
    tweetbox.onkeydown = function(event){
        if(event.keyCode == 13){                                        //13 = Enter keycode
            document.querySelector ('a.primary-btn').click();           //there must be at least one character in the textarea  
        }
    }           
}