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Web design tutorial

2009 latest web design development trend (1)

In these special layout design, the overall creativity is often more important and more memorable than the specific content. Nevertheless, availability, layout and visual design are rarely ignored and executed carefully. Innovation layout is particularly

2025-02-05
Example of how to use canvas to complete the functions of linear gradient and radial gradient

The second use case of fillStyle is gradient filling. Gradient colors are divided into linear gradient colors and radial gradient colors. Linear gradient: roughly divided into two steps. Two new functions of canvas will be used here. Step 1: Use a new fun

2025-02-05
How to solve the problem of toDataURL() error when introducing cross-domain images in Canvas

This article introduces the solution to the problem of toDataURL() error caused by the introduction of cross-domain images in Canvas. I would like to share it with you. The details are as follows: [Scenario] The user opens a web page and requests images o

2025-02-05
JavaScript is introduced by biting the left movement calculation symbol (& lt; & lt;)

Move the operator of the left move (<<) to the left to express the position. Result = Expression1 << Expression2 parameter result any variable. Expression1 any expression. Expression2 any expression. Explanation << The operational symbol

2025-02-05
JS realizes dynamically changing the font size code

In order to improve users on many large websites, they provide font size selection functions to meet the reading needs of people in different ages. In fact, this function is also very simple to implement. To determine, the default font size can be defined

2025-02-05
JS code implementation for browser image selection, preview, rotation, and batch upload

I studied the business scenarios I encountered at work with my colleagues, mainly for compatibility with the IE version. In fact, I collected some trivial knowledge points on the Internet and found solutions, and then integrated them. The main points are

2025-02-05
Introduction to the use of concat() method of arrays in javascript

Copy the code code as follows:<html><head><title> concat() method of array</title><script> /* 数组的concat()方法: 1、该方法不会改变现有的数组，而仅仅会返回被连接数组的一个副本。 2、返回一个新

2025-02-05
How to remove the default style of input type date in html5

How to remove the default style of input type date in html5. Here is a detailed introduction through this article. The specific introduction is as follows: 2. Modify the style of the date and time control. Currently, there are the following 9 pseudo-eleme

2025-02-05
How to use canvas to merge multiple pictures and export them

Let’s first talk about the basic methods of canvas drawing, as follows: const myCanvas = document.createElement(canvas); myCanvas.width = 400; myCanvas.height = 400;c

2025-02-05
Use JS to determine whether the user is online (connected to the Internet)

As shown below: Copy the code The code is as follows:<HTML xmlns:CAP><HEAD><TITLE> JS detects whether user is online</TITLE>

2025-02-05
JS jump page method summary

JS jump page method Daquan <span id="tiao">3</span><a href="javascript:countDown"></a> Xiangzi Net House; automatically jump after second ...

2025-02-05
Small rules and examples of dynamically calling css properties in js

I just saw a good article introducing js to call css attributes. (^_^) It’s good! To avoid forgetting, here’s a summary: 1. For css attributes without an underscore, generally use the style. attribute name directly. Such as: obj.style.margin, obj.style.wi

2025-02-05
The application of HTML5 geographical positioning and third -party tool Baidu map

Foreword: I saw a lot of technical Daniel and related blogs, and rarely described the geographical positioning of HTML5. I do n’t know if they are unwilling to mention or use less. I personally summarize two reasons according to a little experience: No. 1

2025-02-05
Sharing exception handling methods in JS

js fault-tolerant statement, even if js errors occur, no error will be prompted (to prevent a yellow triangle symbol in the lower right corner of the browser, otherwise the user experience will be poor) Copy the code as follows: window.onerror=function(){

2025-02-05
JavaScript transforms data into an integer method

JavaScript provides a method of converting numerical values to PARSEINT for converting the string data "123", or the number of floating points 1.23. Copy code code as follows: PARSEINT ("1"); // 1parseint ("1.2"); // 1parse

2025-02-04

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