From 616d35a92f38e65a68be0168dfd04b4ea0853c23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E5=AD=90=E7=9D=BF?= <1342954478@qq.com>
Date: Mon, 5 Jun 2023 08:37:31 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E4=BA=86=E9=83=A8=E5=88=86?=
 =?UTF-8?q?=E4=BC=98=E5=8C=96=E4=BB=A3=E7=A0=81=E7=9A=84=E6=B3=A8=E9=87=8A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/static/js/fillword.js       |  1 +
 app/static/js/highlight.js      | 11 ++++++-----
 app/static/js/word_operation.js |  1 +
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/app/static/js/fillword.js b/app/static/js/fillword.js
index b3a8b42..98c4ba5 100644
--- a/app/static/js/fillword.js
+++ b/app/static/js/fillword.js
@@ -31,6 +31,7 @@ function onChooseClick() {
 }
 
 // 如果网页刷新，停止播放声音
+// performance.navigation.type 以弃用，改为了performance.getEntriesByType("navigation")[0].type
 if (performance.getEntriesByType("navigation")[0].type == "reload") {
     Reader.stopRead();
 }
\ No newline at end of file
diff --git a/app/static/js/highlight.js b/app/static/js/highlight.js
index 76b4793..87e2b87 100644
--- a/app/static/js/highlight.js
+++ b/app/static/js/highlight.js
@@ -22,19 +22,19 @@ function getWord() {
 
 function highLight() {
     if (!isHighlight) return;
-    let articleContent = document.getElementById("article").innerHTML; // innerHTML保留HTML标签来保持部分格式，且适配不同的浏览器
+    let articleContent = document.getElementById("article").innerHTML; // 相比innerText，innerHTML保留HTML标签，来保持文章原先的格式，且适配不同的浏览器。
     let pickedWords = document.getElementById("selected-words");  // words picked to the text area
     let dictionaryWords = document.getElementById("selected-words2"); // words appearing in the user's new words list
     let allWords = dictionaryWords === null ? pickedWords.value + " " : pickedWords.value + " " + dictionaryWords.value;
-    const list = allWords.split(" "); // 将所有的生词放入一个list中
-    let totalSet = new Set();
+    const list = allWords.split(" "); // 将所有的生词放入一个list中。
+    let totalSet = new Set(); // 通过集合存储所有单词，通过判断重复单词，以及最后只遍历一次的方法，提高运行效率。
     for (let i = 0; i < list.length; ++i) {
-        list[i] = list[i].replace(/(^\W*)|(\W*$)/g, ""); // 消除单词两边的非单词字符
+        list[i] = list[i].replace(/(^\W*)|(\W*$)/g, ""); // 消除单词两边的非单词字符。
         if (list[i] != "" && !totalSet.has(list[i])) {
             // 返回所有匹配单词的集合, 正则表达式RegExp()中, "\b"匹配一个单词的边界, g 表示全局匹配, i 表示对大小写不敏感。
             let matches = new Set(articleContent.match(new RegExp("\\b" + list[i] + "\\b", "gi")));
             if (matches.has("mark")) {
-                // 优先处理单词为 "mark" 的情况
+                // 优先处理单词为 "mark" 的情况，防止和标签<mark>产生冲突。
                 totalSet = new Set(["mark", ...totalSet]);
             }
             totalSet = new Set([...totalSet, ...matches]);
@@ -51,6 +51,7 @@ function highLight() {
 }
 
 function cancelHighlighting() {
+    // 通过innerHTML获取文章后，去掉<mark>标签即可实现取消高亮的功能，不需要遍历单词逐个修改。
     let articleContent = document.getElementById("article").innerHTML;
     articleContent = articleContent.replace(/<(mark)[^>]*>/gi, "");
     articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, "");
diff --git a/app/static/js/word_operation.js b/app/static/js/word_operation.js
index dcf38ff..933866c 100644
--- a/app/static/js/word_operation.js
+++ b/app/static/js/word_operation.js
@@ -164,6 +164,7 @@ function elementFromString(string) {
  *  当first大于second时返回1
  */
 function compareWord(first, second) {
+    // 优化了代码行数
     if (first.freq !== second.freq) {
         return first.freq < second.freq ? -1 : 1;
     }