Twitter - Fix tweet count rounding.user

// ==UserScript==
// @name        Twitter - Fix tweet count rounding
// @namespace   localhost
// @description Because 10050 tweets != 10.1K
// @include     https://twitter.com/*
// @version     1.0
// @grant       none
// ==/UserScript==

// There are two pages that show a user's tweet count, and they have different
// CSS selectors.  So I jammed both of them together.
const realTweetCountSelector = 'a.DashboardProfileCard-statLink, a.ProfileNav-stat';
const fakeTweetCountSelector = 'span.DashboardProfileCard-statValue, span.ProfileNav-value';
var realTweetCount, fakeTweetCount;

// Twitter rounds your tweet count up when displaying a tweet count >=10k
// I find this a bit ridiculous, so this script rounds it down instead
// I wish Twitter used IDs on things instead of classes
// test to see if we should do anything, so we don't spew errors left and right
if( document.querySelectorAll( realTweetCountSelector ).length > 0 ) {
    console.log( 'Page has a tweet count, seeing if it needs to be fixed' );
    realTweetCount = parseInt( document.querySelectorAll( realTweetCountSelector )[0].getAttribute( 'title' ).split( ' ' )[0].split( ',' ).join( '' ) ); // one-liner HOOOOOOOO!
    fakeTweetCount = document.querySelectorAll( fakeTweetCountSelector )[0];
    console.log( 'real tweet count: ' + realTweetCount );
    console.log( 'fake tweet count: ' + fakeTweetCount.textContent );
    if( realTweetCount >= 10000 ) {
        fakeTweetCount.textContent = ( Math.floor( realTweetCount / 100 ) / 10 ).toString() + 'K';
        console.log( 'fixed fake tweet count: ' + fakeTweetCount.textContent );
    }
}

/* Documenting that one-liner, because I'm a responsible programmer:
 *
 * The first thing that happens is getting the tweet count.  It's stored in a
 * title attribute, so we query the selector, grab the first item in the result
 * collection (because Twitter uses classes where they really should be using
 * IDs), and grab the title attribute in question.
 *
 * Now that we have the tweet count, we split that string into an array around
 * the space that it contains, and grab the first element of that array, which
 * is the tweet count without the word "Tweets" after it.
 *
 * The number is still digit-grouped by a comma, so to remove that comma, we
 * split the string into an array around the comma, and then join the elements
 * of the array back together using an empty string.
 *
 * Finally, we convert the string we have to an integer, so we can do math with
 * it.
 */