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Example code similar to Tmall product details moving with the browser

Using this function, it must be integrated into the jquery package principle: when the browser moves to a specified location, the layer floats up, and then adds a style to position the div layer at the top of the browser to copy the code as follows: //Con

2025-02-27
js click elsewhere on the page to close the pop-up layer (sample code)

Copy the code code as follows:<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title> Untitled document</title>

2025-02-27
JS implementation code for deleting the last character of the string

String: string s = "1,2,3,4,5," Target: delete the last one"," Method: The most used substring is substring, which is also the s=s.substring(0,s .length-1) Recently, I have encountered this kind of thing, such as a string "[lighti

2025-02-27
Use JS to correctly judge whether the user name cookies exist

Sometimes we need to use cookie to save the username to record the login status. How can we correctly determine whether the user cookies exist in the machine? Can't simply write such a way to use A! = ". Copy code code as follows: a = getCookie (

2025-02-27
JS solve the pop -up window problem to realize the class jump DIV example

1. JS code is as follows: Copy code code as follows: <%-Implementing class jumping DIV-%><div id="displayClassDiv" style="display:none;"><ul> <% for (int i = 0; i

2025-02-27
Methods to find all nodes with test classes in the page

Preface Alibaba, the web front-end interns are going to take the online exam. Indeed, I would like to add some knowledge to the rookie. So Baidu and Google had the previous front-end written test questions for Alibaba's campus recruitment, and felt th

2025-02-27
Solve the method of solving the Video tag in HTML5 cannot play the MP4 problem

A problem recently found a problem. A 1.MP4 file was recorded on the mobile phone, and the mainstream browsers can be played normally. However, the use format factory transfers the RMVB file to 2.MP4 but cannot be played. It is finally solved by finding r

2025-02-27
How to use convolution kernel for image processing in HTML5 canvas

Convolution What is convolution? I skipped some explanations that used professional terminology and I was confused after reading it. With poor Chinese scores, I tried to explain literally what convolution is... Volume is understood as a kind of compressio

2025-02-27
HTML5 uses HTML2CANVAS for examples of browser screenshots

Recently, in order to solve the overall abnormal information record, the project has studied the full -screen screenshot function of the browser, so that users can quickly screenshots and send them to the administrator when they find abnormalities. The ul

2025-02-27
JS menu click to display or hide the effect of simple examples

Copy code code as follows:

2025-02-27
JS control pagination printing, printing paging example

Copy code code as follows: <%@ page language = "java" contenttype = "text/html; charSet = UTF-8" PageNcoding = "UTF-8"%>

2025-02-27
Examples of using html5 file api to read local files (such as pictures, PDF, etc.)

In the era of HTML4, if we want to present a user's local image on the web page, the user needs to upload the image to the server first, and then download the image according to the image address provided by the server before the image can be displaye

2025-02-27
After the page is loaded, the scroll bar will automatically scroll to a certain position.

There was a requirement yesterday, hoping that the page will automatically scroll to the left after loading. I always thought that just set a value to the page's document.documentElement.scrollLeft and it took effect. I was disappointed~ I took time t

2025-02-27
The JS code of the floating layer DIV is realized by the mask layer

There is nothing to say about this. Essence Put the code directly! Intersection The first is the code of HTML. It contains the login click button and a humble login box. Copy code code as follows:<body><div id="shade"></div><div>

2025-02-27
JS imitation Baidu Tieba Verification Code Special Effects Example Code

Today, I saw that the Baidu verification code was very interesting, so I imitated it. Use JS to automatically compare it after selecting 4 ones. In this article, the method of static contrast to see if you choose all you choose. Then prompt [The answer is

2025-02-27

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