正则表达式 处理新闻列表关键词高亮

/**
 * 处理新闻列表关键词高亮
 * newsList-新闻列表数组 searchValue-搜索词，即需要高亮的字符
 */
function setHighlight(newsList) {
  if (searchValue != '') {
    var arr = newsList;
    var newArr = [];
    var s = searchValue;
    var reg = new RegExp("(" + s + ")", "g");
    console.log(s);
    for(var i =0; i< arr.length; i++){
      var newstr = arr[i].TitleCN.replace(reg, "<span style='color:red'>$1</span>");
      newArr.push({
        TitleCN: newstr,
        SourceUrl: arr[i].SourceUrl
      });
    }
    var htmlStr = '';
    for(var i=0; i<newArr.length; i++) {
      htmlStr += '<p class="result-news-p"><i class="result-news-circle"></i><a class="result-news-one" href="'+newArr[i].SourceUrl+'" target="_blank">'+newArr[i].TitleCN+'</a></p>';
    }
    $('#result-news-list').html(htmlStr);
  }
}