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HTML5 input element type: email and url introduction

Comment: I believe everyone knows the improvements of HTML5. What I want to introduce below are two new input element types, email and url. Let's follow the code to see their benefits. Interested friends can refer to the previous blog post. We have di

2025-04-15
Analysis of the reason why form.submit() cannot submit a form

Directly upload the code: Copy the code as follows:<div id="register"><h4> Membership registration</h4><div>

2025-04-15
Summary of solutions to implementing window.open without intercepting by js

This article describes the solution to the implementation of window.open without being intercepted by js. Share it for your reference. The specific analysis is as follows: 1. Problem: Today, when processing page ajax request, if you want to implement the

2025-04-15
Implement ajax upload file php version using ajaxfileupload.js

Whether it is PHP or other server-side scripts, they provide file upload functions, which are relatively simple to implement. Using JavaScript to cooperate, Ajax file upload can be realized. Although jQuery itself does not provide such simplified function

2025-04-15
HTML elementary tutorial title h1~h6

The p-paragraph label is the beginning of formatting text. HTML tags have special tags to handle titles on your page. They are h1, h2, h3, h4, h5 and h6. Like feudal society, h1 is the omnipotent monarch and h6 is the lowest-level people. Follow the follo

2025-04-15
Specific implementation of js blocking event append

Sometimes you can use e.stopPropagation(); e.preventDefault(); to prevent events from bubbled and execution of default events. But the addition of events cannot be prevented. Under what circumstances should we prevent the addition of events? For example:

2025-04-15
js use typeof method to determine undefined type

js determines the undefined type if (reValue== undefined){alert("undefined");} It is found that it cannot be judged. Finally, I checked the information and used the typeof method: if (typeof(reValue) == "undefined"

2025-04-15
Various methods to implement the prohibition of automatic filling of username and password under 360 browser

Currently, I encountered a very disgusting problem in developing a project. I originally entered the username and password in the login interface and logged in. After selecting to remember the password, I<input type="text" id="userName" /> as well as

2025-04-15
Comparison of bookmark locations of Java and JavaScript to get word document

1.javascript: Open all activex in IE browser, use the following web page to see the bookmark order and location: <html><head><script>var word;word = new ActiveXObject("Word.Applicatio

2025-04-15
A brief analysis of cross-domain problems of js and comparison of advantages and disadvantages of solutions

What is cross-domain? Concept: As long as there is any difference in the protocol, domain name, or port, it is regarded as a different domain. Copy the code as follows: URL indicates whether communication is allowed http://www.a.com/a.jshttp://www.a.com/b

2025-04-15
JavaScript traverses a row and column in a table table and prints its value

JavaScript traversal table1, explains traversal of a row and column in the table, and prints its value 2, implements the source code

2025-04-15
js controls mouse event movement and move out effect display

The movement and removal effects of mouse events can be customized using js. There is an example below. The effect is that when the event changes, the background color will also change, which is suitable for novices. <style type="text/css">.style0{backgro

2025-04-15
html form control disable attribute readonly VS disabled introduction

There are two ways to disable form submission in html, they are: 1. Add readonly='readonly' attribute to the control label 2. Add disabled='disabled' attribute to the control label for example:

2025-04-14
js confirmation delete dialog box is suitable for a tag and submit

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"

2025-04-14
Summary of 4 ways to implement inheritance in JavaScript

Although JavaScript does not provide inherited keywords, we can still come up with some good ways to implement them. 1. Prototype chain inheritance: Copy the code as follows: var Base = function() { this.level = 1; this.name = "base"; th

2025-04-14

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