What is highlighting in jquery
Highlighting in jQuery refers to highlighting when searching for keywords on the page. The implementation method is: 1. First get the row to be highlighted, get the search content, then traverse the entire row of content, and finally Add highlight color; 2. Use the "jQuery highlight" highlight plug-in. After downloading the js file from the official website, introduce the js file into the html file and add the style, use "$("h1").highlight("highlight")" to highlight the search text.
The operating system of this tutorial: Windows 10 system, jQuery 3.6.4 version, Dell G3 computer.
JQuery’s highlighting refers to highlighting when searching for keywords on the page. The method of implementing it is:
Method 1
$(function () {
//1.获取要高亮显示的行
var rowNode = $('.tiBlock_3NhqL');
//2.获取搜索的内容
var searchContent = $(".searchInput_29REY").val();
//3.遍历整行内容，添加高亮颜色
rowNode.each(function () {
var word = $(this).html();
word = word.replace(searchContent, '<span style="color: #c00;">' + searchContent + '</span>');
$(this).html(word);
});
});rowNode is all search results, and searchContent is your specific search text.
Note: jQuery needs to be introduced
This method is not recommended. It seems to be fine, but there is a bug:
When the search content is a When using var word = $(this).html(); to obtain the HTML code of the element to be found, "Replace a in the span tag with will appear. >..." such a question.
What we need is to replace only the text content, not the html code, so let’s look at method two.
Method 2
This method is to use the jquery highlight plug-in.
Go to the official website to download the js file: jQuery Highlight Plugin | bartaz @ GitHub
Scroll down to the Where to get it? location at the bottom to download.
What I am using now is: http://github.com/bartaz/sandbox.js/raw/master/jquery.highlight.js
Reference this js file to Your html file, and then add the style:
<style>
.highlight {background-color: #FFFF88; }
</style>Then you only need js like this: $("h1").highlight("highlight"); to highlight the search text.
The following is a complete example:
<!DOCTYPE html>
<html>
<head>
<title>regex.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="../jquery/jquery-1.11/jquery.min.js"></script>
<script type="text/javascript" src="../jquery/jquery-highlight/jquery-hightlight.js"></script>
<style>
.highlight {background-color: #FFFF88; }
</style>
<script>
$(function(){
$('#search').click(function(){
var key = $('#key').val();
if(key != undefined && key.length > 0) { //注意要判断key是否为undefined
var body = $('#body');
body.removeHighlight();
body.highlight(key);
} else {
alert("请输入关键字！")
}
});
});
</script>
</head>
<body>
<div>
<input id="key" type="text">
<input id="search" type="button" value="搜索">
</div>
<div id="head">
This is a test head!
<div>
input the search key.
</div>
<div>
click "搜索" button.
</div>
</div>
<h1>如下是搜索区域!</h1>
<div id="body">
This is a test body!
<div>
This is a test, a test, test, tes, te, t!
Do you know and listen this test, I think you don't know this test!
</div>
<div>
这是一个简答的测试,测试.
<p>你知道或者听过这个测试吗，我认为你没有听过这个测试！</p>
</div>
<div>
This is a test, a test, test, tes, te, t!
I know't know this test, yes, this test is a not famous test!
<p>Follow me test, to test the test! I don't know what do you say?</p>
</div>
<div>
<div>
这是一个简答的测试,测试.
我不知道这个测试，是的，这不是一个注明的测试，
<span>跟随我，去测试这个测试，我都不知道我在说什么！</span>
</div>
</div>
<div>
What do you say? test, only a test?
<p>你们说什么呢？测试，一个测试？</p>
</div>
</div>
</body>
</html>The above is the detailed content of What is highlighting in jquery. For more information, please follow other related articles on the PHP Chinese website!
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