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Web design tutorial

Example of Javascript implementation prohibiting Chinese or English input

This tutorial teaches you how to use Javascript to restrict input in English, or restrict input in Chinese. English is prohibited: copy the code code as follows:

2025-04-24
html5 Canvas drawing tutorial (11) - Use lineTo/arc/bezierCurveTo to draw an oval

In canvas, you can easily draw a circle using the arc method. Originally, the circle can also be regarded as an ellipse with equal width and height, but there is no way to draw an ellipse in canvas. We need to use other methods to simulate it. We must fir

2025-04-24
innerHTML error report solution in IE

Question: During the development process, I used to loop into the table and then loop into the td. There was no problem in other browsers, but I reported an error in IE9 and below: I got the answer on Google: Because I didn’t know the error before, I coul

2025-04-24
Node.js implements batch removal of BOM file headers

My previous colleague wrote a tool, but there was a bug, that is, after replacing the file, the format of the original file became utf8 BOM. This kind of XML with BOM may not be read on Mac, so I need to write a tool to deal with it. In fact, the idea is

2025-04-24
HTML5+CSS3 web page production: adaptive three-column layout width

Wulin.com (www.vevb.com) Article introduction: CSS3+HTML5 Learning Notes 4--CSS three-column layout-width only adapts. In the past, when doing three-column layout, the most common and simplest method may be: use float+margin to achieve it. In the era of C

2025-04-24
2012 web design trend: Make design more in line with customer needs

Article introduction of Wulin.com (www.vevb.com): After seeing this article, web designers should not be surprised to find that many trends mentioned in the content are actually being produced and have even become part of your design! The trends of web de

2025-04-24
Beginners come into contact with HTML to learn about some HTML tags (2)

Related articles: Beginners come into contact with HTML to learn some HTML tags (1) Beginners come into contact with HTML to learn some HTML tags, and introduce them one after another. It can help beginners learn HTML, or friends who are already in the pr

2025-04-24
js time date formatting encapsulation function

Although js provides various different attribute methods for obtaining time Date objects, such as: getDate method | getDay method | getFullYear method | getHours method... etc., it does not provide a method like java for users to use according to their ow

2025-04-24
Detailed description of new features such as html5 audio audio and video video, etc.

Comment: HTML5 is the next generation web standard, and the html5 craze has been launched in the html5 craze in the New Year; html5 audio audio and video video have always been paid attention to by netizens, and I am also curious, so I collected and sorte

2025-04-24
JavaScript Get the decimal number after the two decimal places of any float type

Use Javascript to take two decimal places after float type, and use example 22.127456 to 22.13. How to do it? 1. This method is least recommended: function get(){ var s = 22.127456 + ""; var str = s.substring(

2025-04-24
Solution to the border style of &lt;td&gt;&lt;/td&gt;Tag cannot be displayed in the browser

Problem: In some browsers, such as 360 browser,<td style=border:1px solid red;></td> When the content in the tag is empty, that is:<td style=border:1px solid red;></td> , what she looks like

2025-04-24
How to represent spaces in Html (What does &nbsp mean)

In web development, you often encounter such characters. It is actually a way for Html to express some special characters (Html syntax characters). Common: Space & & < < > > " &qpos; '

2025-04-24
Detailed explanation of the example of calling parent page function in iframe

window.parent.xxxxx();//xxxxx() represents the parent page method as follows, including the right-click of easyUI and the click event parent.jspbody part of the code<body>

2025-04-24
2025-04-24
Javascript learning notes equality and strict equality symbols

Javascript has two ways to determine whether the two values are equal. Equal Symbols Equal Symbols consist of two equal signs: ==Javascript is a weak-type language. This means that equal signs will cast the type in order to compare two values. Copy the

2025-04-24

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