Amazon - Show percentages for review scores

Adds the percentage of people who gave each rating to the review table

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您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

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// ==UserScript==
// @name           Amazon - Show percentages for review scores
// @description    Adds the percentage of people who gave each rating to the review table
// @author         James Skinner <[email protected]> (http://github.com/spiralx)
// @namespace      http://spiralx.org/
// @version        1.0.0
// @icon           data:image/png;base64,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// @match          *://*.amazon.tld/*
// @grant          none
// ==/UserScript==

/* jshint asi: true, esnext: true */

(function(window, document) {
  'use strict'

  /* Match elements using selector, call func(elem, idx) on each */
  function $each(selector, func) {
    Array.from(document.querySelectorAll(selector)).forEach(func)
  }

  // --------------------------------------------------------------

  var el = document.querySelector('#summaryStars, .totalReviewCount'),
      total = el && parseInt(el.textContent)

  if (total) {
    $each('#histogramTable td:last-child a', a => {
      var num = parseInt(a.textContent),
          pct = 100 * (num / total)

      if (num > 0) {
        a.innerHTML = `${num} - <b>${pct.toFixed(0)}%</b>`
      }
    })
  }

})(window, document)