jav101_like_ratio.js

// ==UserScript==
// @name         JAV101 Likes Ratio
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://v.jav101.com/*
// @grant        none
// ==/UserScript==

(function () {
  'use strict';
  function s2n(s) {
    let g = /(?:(?<k>\d+)k)?(?<n>\d+)?/i.exec(s).groups;
    return 0 + (g.n ? Number(g.n) : 0) + (g.k ? Number(g.k) * 1000 : 0);
  }
  $('.videoBox-action').each((i, e) => {
    e = $(e);
    let views = e.find('.views .number');
    let likes = e.find('.likes .number');
    let ratio = Math.round(1000 * s2n(likes.text()) / s2n(views.text())) / 100;
    likes.text(ratio);
    if (ratio > 1.5)      likes.css('color', '#F00').css('font-weight', 'bold');
    else if (ratio > 1.0) likes.css('color', '#C00').css('font-weight', 'bold');
    else if (ratio > 0.7) likes.css('color', '#A44');
    else if (ratio > 0.3) likes.css('color', '#744');
    else                  likes.css('color', '#444');
  });
})();